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Organovo Holdings, Inc. – ‘10-Q’ for 6/30/15 – ‘EX-101.LAB’

On:  Monday, 8/10/15, at 4:05pm ET   ·   For:  6/30/15   ·   Accession #:  1564590-15-6825   ·   File #:  1-35996

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  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 8/10/15  Organovo Holdings, Inc.           10-Q        6/30/15   46:3.9M                                   ActiveDisclosure/FA

Quarterly Report   —   Form 10-Q   —   Sect. 13 / 15(d) – SEA’34
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-Q        Quarterly Report                                    HTML    299K 
 2: EX-31.1     Certification -- §302 - SOA'02                      HTML     26K 
 3: EX-31.2     Certification -- §302 - SOA'02                      HTML     25K 
 4: EX-32.1     Certification -- §906 - SOA'02                      HTML     21K 
29: R1          Document and Entity Information                     HTML     38K 
22: R2          Condensed Consolidated Balance Sheets               HTML     94K 
27: R3          Condensed Consolidated Balance Sheets               HTML     28K 
                (Parenthetical)                                                  
31: R4          Unaudited Condensed Consolidated Statements of      HTML     55K 
                Operations                                                       
42: R5          Unaudited Condensed Consolidated Statements of      HTML     89K 
                Cash Flows                                                       
23: R6          Unaudited Condensed Consolidated Statements of      HTML     21K 
                Cash Flows (Parenthetical)                                       
26: R7          Description of Business and Summary of Significant  HTML    114K 
                Accounting Policies                                              
20: R8          Derivative Liability                                HTML     66K 
15: R9          Stockholders' Equity                                HTML    152K 
43: R10         Commitments and Contingencies                       HTML     52K 
33: R11         Concentrations                                      HTML     23K 
32: R12         Recent Accounting Pronouncements                    HTML     26K 
37: R13         Subsequent Events                                   HTML     19K 
38: R14         Description of Business and Summary of Significant  HTML    184K 
                Accounting Policies (Policies)                                   
36: R15         Description of Business and Summary of Significant  HTML     76K 
                Accounting Policies (Tables)                                     
39: R16         Derivative Liability (Tables)                       HTML     60K 
28: R17         Stockholders' Equity (Tables)                       HTML    136K 
30: R18         Commitments and Contingencies (Tables)              HTML     34K 
35: R19         Description of Business and Summary of Significant  HTML     82K 
                Accounting Policies - Additional Information                     
                (Detail)                                                         
46: R20         Description of Business and Summary of Significant  HTML     31K 
                Accounting Policies - Estimated Fair Values of                   
                Liabilities Measured on Recurring Basis (Detail)                 
40: R21         Description of Business and Summary of Significant  HTML     32K 
                Accounting Policies - Activity for Liabilities                   
                Measured at Estimated Fair Value Using                           
                Unobservable Inputs (Detail)                                     
24: R22         Derivative Liability - Additional Information       HTML     36K 
                (Detail)                                                         
34: R23         Derivative Liability - Assumptions Used to Value    HTML     33K 
                Derivative Liabilities at Closing Dates of Private               
                Placements (Detail)                                              
25: R24         Stockholders' Equity - Additional Information       HTML    145K 
                (Detail)                                                         
13: R25         Stockholders' Equity - Summary of Company's         HTML     29K 
                Restricted Stock Award Activity (Detail)                         
41: R26         Stockholders' Equity - Additional Information 1     HTML     54K 
                (Detail)                                                         
44: R27         Stockholders' Equity - Summary of Stock Option      HTML     52K 
                Activity (Detail)                                                
17: R28         Stockholders' Equity - Fair Value of Employee       HTML     32K 
                Stock Options (Detail)                                           
16: R29         Stockholders' Equity - Additional Information 2     HTML     78K 
                (Detail)                                                         
18: R30         Stockholders' Equity - Summary of Warrant Activity  HTML     44K 
                (Detail)                                                         
19: R31         Stockholders' Equity - Common Stock Reserved for    HTML     27K 
                Future Issuance (Detail)                                         
21: R32         Commitments and Contingencies - Additional          HTML     49K 
                Information (Detail)                                             
12: R33         Commitments and Contingencies - Future Minimum      HTML     38K 
                Rental Payments Required under Operating Leases                  
                that have Initial or Remaining Non-Cancelable                    
                Lease Terms in Excess of One Year (Detail)                       
45: XML         IDEA XML File -- Filing Summary                      XML     78K 
11: EXCEL       IDEA Workbook of Financial Reports                  XLSX     56K 
 5: EX-101.INS  XBRL Instance -- onvo-20150630                       XML   1.01M 
 7: EX-101.CAL  XBRL Calculations -- onvo-20150630_cal               XML     90K 
 8: EX-101.DEF  XBRL Definitions -- onvo-20150630_def                XML    303K 
 9: EX-101.LAB  XBRL Labels -- onvo-20150630_lab                     XML    742K 
10: EX-101.PRE  XBRL Presentations -- onvo-20150630_pre              XML    570K 
 6: EX-101.SCH  XBRL Schema -- onvo-20150630                         XSD    102K 
14: ZIP         XBRL Zipped Folder -- 0001564590-15-006825-xbrl      Zip     99K

‘EX-101.LAB’   —   XBRL Labels — onvo-20150630_lab

This Exhibit is an XBRL XML File.

                                                                                                                                                                                
<?xml version="1.0" standalone="yes" encoding="windows-1252"?>
<!-- RRD ActiveDisclosure(SM) XBRL Linkbase Document - http://www.financial.rrd.com/ -->
<!-- Creation Date : 2015-08-07T15:40:57.9322706+00:00 -->
<!-- Version : 2.0.9.1 -->
<!-- Package ID : ABD5B3EBBD90C95D962954E902EFD42B-0001497253-001506 -->
<!-- Copyright (c) 2015 R. R. Donnelley & Sons Company. All Rights Reserved. -->
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
<roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel" xlink:type="simple"/>
<roleRef roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel" xlink:type="simple"/>
<roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel" xlink:type="simple"/>
<roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel" xlink:type="simple"/>
<roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel" xlink:type="simple"/>
<roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel" xlink:type="simple"/>
<roleRef roleURI="http://www.xbrl.org/2009/role/netLabel" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel" xlink:type="simple"/>
<labelLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">
<loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCentralIndexKey" xlink:type="locator" xlink:label="dei_EntityCentralIndexKey"/>
<label xml:lang="en-US" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Entity Central Index Key </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCentralIndexKey" xlink:to="dei_EntityCentralIndexKey_lbl"/>
<loc xlink:href="onvo-20150630.xsd#onvo_DocumentAndEntityInformationAbstract" xlink:type="locator" xlink:label="onvo_DocumentAndEntityInformationAbstract"/>
<label xml:lang="en-US" xlink:label="onvo_DocumentAndEntityInformationAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Document and entity information. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_DocumentAndEntityInformationAbstract" xlink:to="onvo_DocumentAndEntityInformationAbstract_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_DocumentAndEntityInformationAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Document And Entity Information [Abstract] </label>
<loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentType" xlink:type="locator" xlink:label="dei_DocumentType"/>
<label xml:lang="en-US" xlink:label="dei_DocumentType_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Document Type </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentType" xlink:to="dei_DocumentType_lbl"/>
<label xml:lang="en-US" xlink:label="dei_DocumentType_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Document Type </label>
<loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_AmendmentFlag" xlink:type="locator" xlink:label="dei_AmendmentFlag"/>
<label xml:lang="en-US" xlink:label="dei_AmendmentFlag_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Amendment Flag </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AmendmentFlag" xlink:to="dei_AmendmentFlag_lbl"/>
<label xml:lang="en-US" xlink:label="dei_AmendmentFlag_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Amendment Flag </label>
<loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentPeriodEndDate" xlink:type="locator" xlink:label="dei_DocumentPeriodEndDate"/>
<label xml:lang="en-US" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Document Period End Date </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentPeriodEndDate" xlink:to="dei_DocumentPeriodEndDate_lbl"/>
<label xml:lang="en-US" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Document Period End Date </label>
<loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalYearFocus" xlink:type="locator" xlink:label="dei_DocumentFiscalYearFocus"/>
<label xml:lang="en-US" xlink:label="dei_DocumentFiscalYearFocus_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Document Fiscal Year Focus </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFiscalYearFocus" xlink:to="dei_DocumentFiscalYearFocus_lbl"/>
<label xml:lang="en-US" xlink:label="dei_DocumentFiscalYearFocus_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Document Fiscal Year Focus </label>
<loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:type="locator" xlink:label="dei_DocumentFiscalPeriodFocus"/>
<label xml:lang="en-US" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Document Fiscal Period Focus </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentFiscalPeriodFocus" xlink:to="dei_DocumentFiscalPeriodFocus_lbl"/>
<label xml:lang="en-US" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Document Fiscal Period Focus </label>
<loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_TradingSymbol" xlink:type="locator" xlink:label="dei_TradingSymbol"/>
<label xml:lang="en-US" xlink:label="dei_TradingSymbol_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Trading Symbol </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_TradingSymbol" xlink:to="dei_TradingSymbol_lbl"/>
<label xml:lang="en-US" xlink:label="dei_TradingSymbol_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Trading Symbol </label>
<loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityRegistrantName" xlink:type="locator" xlink:label="dei_EntityRegistrantName"/>
<label xml:lang="en-US" xlink:label="dei_EntityRegistrantName_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Entity Registrant Name </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityRegistrantName" xlink:to="dei_EntityRegistrantName_lbl"/>
<label xml:lang="en-US" xlink:label="dei_EntityRegistrantName_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Entity Registrant Name </label>
<label xml:lang="en-US" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Entity Central Index Key </label>
<loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:type="locator" xlink:label="dei_CurrentFiscalYearEndDate"/>
<label xml:lang="en-US" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Current Fiscal Year End Date </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_CurrentFiscalYearEndDate" xlink:to="dei_CurrentFiscalYearEndDate_lbl"/>
<label xml:lang="en-US" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Current Fiscal Year End Date </label>
<loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityFilerCategory" xlink:type="locator" xlink:label="dei_EntityFilerCategory"/>
<label xml:lang="en-US" xlink:label="dei_EntityFilerCategory_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Entity Filer Category </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityFilerCategory" xlink:to="dei_EntityFilerCategory_lbl"/>
<label xml:lang="en-US" xlink:label="dei_EntityFilerCategory_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Entity Filer Category </label>
<loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:type="locator" xlink:label="dei_EntityCommonStockSharesOutstanding"/>
<label xml:lang="en-US" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Entity Common Stock, Shares Outstanding </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCommonStockSharesOutstanding" xlink:to="dei_EntityCommonStockSharesOutstanding_lbl"/>
<label xml:lang="en-US" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Entity Common Stock Shares Outstanding </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:type="locator" xlink:label="us-gaap_StatementOfFinancialPositionAbstract"/>
<label xml:lang="en-US" xlink:label="us-gaap_StatementOfFinancialPositionAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Statement Of Financial Position [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfFinancialPositionAbstract" xlink:to="us-gaap_StatementOfFinancialPositionAbstract_lbl"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetsAbstract" xlink:type="locator" xlink:label="us-gaap_AssetsAbstract"/>
<label xml:lang="en-US" xlink:label="us-gaap_AssetsAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsAbstract" xlink:to="us-gaap_AssetsAbstract_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_AssetsAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Assets [Abstract] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:type="locator" xlink:label="us-gaap_AssetsCurrentAbstract"/>
<label xml:lang="en-US" xlink:label="us-gaap_AssetsCurrentAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Current Assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsCurrentAbstract" xlink:to="us-gaap_AssetsCurrentAbstract_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_AssetsCurrentAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Assets Current [Abstract] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:type="locator" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
<label xml:lang="en-US" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Cash and cash equivalents </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:to="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Cash And Cash Equivalents At Carrying Value </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:type="locator" xlink:label="us-gaap_AccountsReceivableNetCurrent"/>
<label xml:lang="en-US" xlink:label="us-gaap_AccountsReceivableNetCurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accounts receivable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsReceivableNetCurrent" xlink:to="us-gaap_AccountsReceivableNetCurrent_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_AccountsReceivableNetCurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Accounts Receivable Net Current </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InventoryNet" xlink:type="locator" xlink:label="us-gaap_InventoryNet"/>
<label xml:lang="en-US" xlink:label="us-gaap_InventoryNet_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Inventory </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoryNet" xlink:to="us-gaap_InventoryNet_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_InventoryNet_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Inventory Net </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:type="locator" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
<label xml:lang="en-US" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Prepaid expenses and other current assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:to="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Prepaid Expense And Other Assets Current </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AssetsCurrent" xlink:type="locator" xlink:label="us-gaap_AssetsCurrent"/>
<label xml:lang="en-US" xlink:label="us-gaap_AssetsCurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total current assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsCurrent" xlink:to="us-gaap_AssetsCurrent_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_AssetsCurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Assets Current </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentNet"/>
<label xml:lang="en-US" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Fixed assets, net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentNet" xlink:to="us-gaap_PropertyPlantAndEquipmentNet_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Property Plant And Equipment Net </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsNoncurrent" xlink:type="locator" xlink:label="us-gaap_RestrictedCashAndCashEquivalentsNoncurrent"/>
<label xml:lang="en-US" xlink:label="us-gaap_RestrictedCashAndCashEquivalentsNoncurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Restricted cash </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RestrictedCashAndCashEquivalentsNoncurrent" xlink:to="us-gaap_RestrictedCashAndCashEquivalentsNoncurrent_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_RestrictedCashAndCashEquivalentsNoncurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Restricted Cash And Cash Equivalents Noncurrent </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:type="locator" xlink:label="us-gaap_OtherAssetsNoncurrent"/>
<label xml:lang="en-US" xlink:label="us-gaap_OtherAssetsNoncurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Other assets, net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAssetsNoncurrent" xlink:to="us-gaap_OtherAssetsNoncurrent_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_OtherAssetsNoncurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Other Assets Noncurrent </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_Assets" xlink:type="locator" xlink:label="us-gaap_Assets"/>
<label xml:lang="en-US" xlink:label="us-gaap_Assets_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Assets" xlink:to="us-gaap_Assets_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_Assets_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Assets </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:type="locator" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
<label xml:lang="en-US" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Liabilities and Stockholders’ Equity </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:to="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Liabilities And Stockholders Equity [Abstract] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:type="locator" xlink:label="us-gaap_LiabilitiesCurrentAbstract"/>
<label xml:lang="en-US" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Current Liabilities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_LiabilitiesCurrentAbstract_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Liabilities Current [Abstract] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:type="locator" xlink:label="us-gaap_AccountsPayableCurrent"/>
<label xml:lang="en-US" xlink:label="us-gaap_AccountsPayableCurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accounts payable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsPayableCurrent" xlink:to="us-gaap_AccountsPayableCurrent_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_AccountsPayableCurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Accounts Payable Current </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:type="locator" xlink:label="us-gaap_AccruedLiabilitiesCurrent"/>
<label xml:lang="en-US" xlink:label="us-gaap_AccruedLiabilitiesCurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accrued expenses </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccruedLiabilitiesCurrent" xlink:to="us-gaap_AccruedLiabilitiesCurrent_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_AccruedLiabilitiesCurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Accrued Liabilities Current </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredRentCreditCurrent" xlink:type="locator" xlink:label="us-gaap_DeferredRentCreditCurrent"/>
<label xml:lang="en-US" xlink:label="us-gaap_DeferredRentCreditCurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Deferred rent </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredRentCreditCurrent" xlink:to="us-gaap_DeferredRentCreditCurrent_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_DeferredRentCreditCurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Deferred Rent Credit Current </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredRevenueCurrent" xlink:type="locator" xlink:label="us-gaap_DeferredRevenueCurrent"/>
<label xml:lang="en-US" xlink:label="us-gaap_DeferredRevenueCurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Deferred revenue </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredRevenueCurrent" xlink:to="us-gaap_DeferredRevenueCurrent_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_DeferredRevenueCurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Deferred Revenue Current </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CapitalLeaseObligationsCurrent" xlink:type="locator" xlink:label="us-gaap_CapitalLeaseObligationsCurrent"/>
<label xml:lang="en-US" xlink:label="us-gaap_CapitalLeaseObligationsCurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Capital lease obligation </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CapitalLeaseObligationsCurrent" xlink:to="us-gaap_CapitalLeaseObligationsCurrent_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_CapitalLeaseObligationsCurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Capital Lease Obligations Current </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeLiabilitiesCurrent" xlink:type="locator" xlink:label="us-gaap_DerivativeLiabilitiesCurrent"/>
<label xml:lang="en-US" xlink:label="us-gaap_DerivativeLiabilitiesCurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Warrant liabilities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DerivativeLiabilitiesCurrent" xlink:to="us-gaap_DerivativeLiabilitiesCurrent_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_DerivativeLiabilitiesCurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Derivative Liabilities Current </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:type="locator" xlink:label="us-gaap_LiabilitiesCurrent"/>
<label xml:lang="en-US" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total current liabilities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesCurrent" xlink:to="us-gaap_LiabilitiesCurrent_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Liabilities Current </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredRevenueNoncurrent" xlink:type="locator" xlink:label="us-gaap_DeferredRevenueNoncurrent"/>
<label xml:lang="en-US" xlink:label="us-gaap_DeferredRevenueNoncurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Deferred revenue, net of current portion </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredRevenueNoncurrent" xlink:to="us-gaap_DeferredRevenueNoncurrent_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_DeferredRevenueNoncurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Deferred Revenue Noncurrent </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_Liabilities" xlink:type="locator" xlink:label="us-gaap_Liabilities"/>
<label xml:lang="en-US" xlink:label="us-gaap_Liabilities_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total liabilities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_Liabilities_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_Liabilities_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Liabilities </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:type="locator" xlink:label="us-gaap_CommitmentsAndContingencies"/>
<label xml:lang="en-US" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Commitments and Contingencies (Note 4) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsAndContingencies" xlink:to="us-gaap_CommitmentsAndContingencies_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Commitments And Contingencies </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:type="locator" xlink:label="us-gaap_StockholdersEquityAbstract"/>
<label xml:lang="en-US" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Stockholders’ Equity </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityAbstract" xlink:to="us-gaap_StockholdersEquityAbstract_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Stockholders Equity [Abstract] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockValue" xlink:type="locator" xlink:label="us-gaap_CommonStockValue"/>
<label xml:lang="en-US" xlink:label="us-gaap_CommonStockValue_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Common stock, $0.001 par value; 150,000,000 shares authorized, 92,426,404 and 81,536,724 shares issued and outstanding at June 30, 2015 and March 31, 2015, respectively </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockValue" xlink:to="us-gaap_CommonStockValue_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_CommonStockValue_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Common Stock Value </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock" xlink:type="locator" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock"/>
<label xml:lang="en-US" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Additional paid-in capital </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdditionalPaidInCapitalCommonStock" xlink:to="us-gaap_AdditionalPaidInCapitalCommonStock_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Additional Paid In Capital Common Stock </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:type="locator" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit"/>
<label xml:lang="en-US" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accumulated deficit </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RetainedEarningsAccumulatedDeficit" xlink:to="us-gaap_RetainedEarningsAccumulatedDeficit_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Retained Earnings Accumulated Deficit </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockholdersEquity" xlink:type="locator" xlink:label="us-gaap_StockholdersEquity"/>
<label xml:lang="en-US" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total stockholders’ equity </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_StockholdersEquity_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Stockholders Equity </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:type="locator" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity"/>
<label xml:lang="en-US" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total Liabilities and Stockholders’ Equity </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_LiabilitiesAndStockholdersEquity_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Liabilities And Stockholders Equity </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:type="locator" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare"/>
<label xml:lang="en-US" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Common stock, par value </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockParOrStatedValuePerShare" xlink:to="us-gaap_CommonStockParOrStatedValuePerShare_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Common Stock Par Or Stated Value Per Share </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:type="locator" xlink:label="us-gaap_CommonStockSharesAuthorized"/>
<label xml:lang="en-US" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Common stock, shares authorized </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesAuthorized" xlink:to="us-gaap_CommonStockSharesAuthorized_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Common Stock Shares Authorized </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:type="locator" xlink:label="us-gaap_CommonStockSharesIssued"/>
<label xml:lang="en-US" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Common stock, shares issued </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesIssued" xlink:to="us-gaap_CommonStockSharesIssued_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Common Stock Shares Issued </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:type="locator" xlink:label="us-gaap_CommonStockSharesOutstanding"/>
<label xml:lang="en-US" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Common stock, shares outstanding </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesOutstanding" xlink:to="us-gaap_CommonStockSharesOutstanding_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Common Stock Shares Outstanding </label>
<loc xlink:href="onvo-20150630.xsd#onvo_RevenueFromResearchCollaborations" xlink:type="locator" xlink:label="onvo_RevenueFromResearchCollaborations"/>
<label xml:lang="en-US" xlink:label="onvo_RevenueFromResearchCollaborations_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Revenue from research collaborations. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_RevenueFromResearchCollaborations" xlink:to="onvo_RevenueFromResearchCollaborations_lbl"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:type="locator" xlink:label="us-gaap_IncomeStatementAbstract"/>
<label xml:lang="en-US" xlink:label="us-gaap_IncomeStatementAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Income Statement [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_IncomeStatementAbstract_lbl"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RevenuesAbstract" xlink:type="locator" xlink:label="us-gaap_RevenuesAbstract"/>
<label xml:lang="en-US" xlink:label="us-gaap_RevenuesAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Revenues </label>
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<label xml:lang="en-US" xlink:label="us-gaap_RevenuesAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Revenues [Abstract] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SalesRevenueNet" xlink:type="locator" xlink:label="us-gaap_SalesRevenueNet"/>
<label xml:lang="en-US" xlink:label="us-gaap_SalesRevenueNet_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Product and service </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SalesRevenueNet" xlink:to="us-gaap_SalesRevenueNet_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_SalesRevenueNet_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Sales Revenue Net </label>
<label xml:lang="en-US" xlink:label="onvo_RevenueFromResearchCollaborations_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Collaborations </label>
<label xml:lang="en-US" xlink:label="onvo_RevenueFromResearchCollaborations_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Revenue From Research Collaborations </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RevenueFromGrants" xlink:type="locator" xlink:label="us-gaap_RevenueFromGrants"/>
<label xml:lang="en-US" xlink:label="us-gaap_RevenueFromGrants_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Grants </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenueFromGrants" xlink:to="us-gaap_RevenueFromGrants_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_RevenueFromGrants_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Revenue From Grants </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_Revenues" xlink:type="locator" xlink:label="us-gaap_Revenues"/>
<label xml:lang="en-US" xlink:label="us-gaap_Revenues_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total Revenues </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Revenues" xlink:to="us-gaap_Revenues_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_Revenues_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Revenues </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpense" xlink:type="locator" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpense"/>
<label xml:lang="en-US" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpense_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Selling, general, and administrative expenses </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SellingGeneralAndAdministrativeExpense" xlink:to="us-gaap_SellingGeneralAndAdministrativeExpense_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpense_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Selling General And Administrative Expense </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense" xlink:type="locator" xlink:label="us-gaap_ResearchAndDevelopmentExpense"/>
<label xml:lang="en-US" xlink:label="us-gaap_ResearchAndDevelopmentExpense_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Research and development expenses </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ResearchAndDevelopmentExpense" xlink:to="us-gaap_ResearchAndDevelopmentExpense_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ResearchAndDevelopmentExpense_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Research And Development Expense </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:type="locator" xlink:label="us-gaap_OperatingIncomeLoss"/>
<label xml:lang="en-US" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Loss from Operations </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingIncomeLoss" xlink:to="us-gaap_OperatingIncomeLoss_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Operating Income Loss </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NonoperatingIncomeExpenseAbstract" xlink:type="locator" xlink:label="us-gaap_NonoperatingIncomeExpenseAbstract"/>
<label xml:lang="en-US" xlink:label="us-gaap_NonoperatingIncomeExpenseAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Other Income (Expense) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NonoperatingIncomeExpenseAbstract" xlink:to="us-gaap_NonoperatingIncomeExpenseAbstract_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_NonoperatingIncomeExpenseAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Nonoperating Income Expense [Abstract] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet" xlink:type="locator" xlink:label="us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet"/>
<label xml:lang="en-US" xlink:label="us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Change in fair value of warrant liabilities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet" xlink:to="us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InterestExpense" xlink:type="locator" xlink:label="us-gaap_InterestExpense"/>
<label xml:lang="en-US" xlink:label="us-gaap_InterestExpense_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Interest expense </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestExpense" xlink:to="us-gaap_InterestExpense_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_InterestExpense_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Interest Expense </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InvestmentIncomeInterest" xlink:type="locator" xlink:label="us-gaap_InvestmentIncomeInterest"/>
<label xml:lang="en-US" xlink:label="us-gaap_InvestmentIncomeInterest_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Interest income </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentIncomeInterest" xlink:to="us-gaap_InvestmentIncomeInterest_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_InvestmentIncomeInterest_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Investment Income Interest </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NonoperatingIncomeExpense" xlink:type="locator" xlink:label="us-gaap_NonoperatingIncomeExpense"/>
<label xml:lang="en-US" xlink:label="us-gaap_NonoperatingIncomeExpense_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total Other Income (Expense) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NonoperatingIncomeExpense" xlink:to="us-gaap_NonoperatingIncomeExpense_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_NonoperatingIncomeExpense_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Nonoperating Income Expense </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetIncomeLoss" xlink:type="locator" xlink:label="us-gaap_NetIncomeLoss"/>
<label xml:lang="en-US" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Net Loss </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_NetIncomeLoss_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Net Income Loss </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerShareBasicAndDiluted" xlink:type="locator" xlink:label="us-gaap_EarningsPerShareBasicAndDiluted"/>
<label xml:lang="en-US" xlink:label="us-gaap_EarningsPerShareBasicAndDiluted_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Net loss per common share—basic and diluted </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareBasicAndDiluted" xlink:to="us-gaap_EarningsPerShareBasicAndDiluted_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_EarningsPerShareBasicAndDiluted_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Earnings Per Share Basic And Diluted </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted" xlink:type="locator" xlink:label="us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted"/>
<label xml:lang="en-US" xlink:label="us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Weighted average shares used in computing net loss per common share—basic and diluted </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted" xlink:to="us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_WeightedAverageNumberOfShareOutstandingBasicAndDiluted_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Weighted Average Number Of Share Outstanding Basic And Diluted </label>
<loc xlink:href="onvo-20150630.xsd#onvo_IncreaseDecreaseInDeferredRent" xlink:type="locator" xlink:label="onvo_IncreaseDecreaseInDeferredRent"/>
<label xml:lang="en-US" xlink:label="onvo_IncreaseDecreaseInDeferredRent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Increase decrease in deferred rent. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_IncreaseDecreaseInDeferredRent" xlink:to="onvo_IncreaseDecreaseInDeferredRent_lbl"/>
<loc xlink:href="onvo-20150630.xsd#onvo_ProceedsFromIssuanceOfCommonStockAndWarrants" xlink:type="locator" xlink:label="onvo_ProceedsFromIssuanceOfCommonStockAndWarrants"/>
<label xml:lang="en-US" xlink:label="onvo_ProceedsFromIssuanceOfCommonStockAndWarrants_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Proceeds from issuance of common stock and warrants. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_ProceedsFromIssuanceOfCommonStockAndWarrants" xlink:to="onvo_ProceedsFromIssuanceOfCommonStockAndWarrants_lbl"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:type="locator" xlink:label="us-gaap_StatementOfCashFlowsAbstract"/>
<label xml:lang="en-US" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Statement Of Cash Flows [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_StatementOfCashFlowsAbstract_lbl"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract"/>
<label xml:lang="en-US" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Cash Flows From Operating Activities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Net Cash Provided By Used In Operating Activities Continuing Operations [Abstract] </label>
<label xml:lang="en-US" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Net loss </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:type="locator" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/>
<label xml:lang="en-US" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Adjustments to reconcile net loss to net cash used in operating activities: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:type="locator" xlink:label="us-gaap_DepreciationDepletionAndAmortization"/>
<label xml:lang="en-US" xlink:label="us-gaap_DepreciationDepletionAndAmortization_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Depreciation and amortization </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DepreciationDepletionAndAmortization" xlink:to="us-gaap_DepreciationDepletionAndAmortization_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_DepreciationDepletionAndAmortization_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Depreciation Depletion And Amortization </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAdjustmentOfWarrants" xlink:type="locator" xlink:label="us-gaap_FairValueAdjustmentOfWarrants"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueAdjustmentOfWarrants_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Change in fair value of warrant liabilities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAdjustmentOfWarrants" xlink:to="us-gaap_FairValueAdjustmentOfWarrants_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueAdjustmentOfWarrants_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Adjustment Of Warrants </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensation"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensation_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Stock-based compensation </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensation" xlink:to="us-gaap_ShareBasedCompensation_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensation_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AdjustmentOfWarrantsGrantedForServices" xlink:type="locator" xlink:label="us-gaap_AdjustmentOfWarrantsGrantedForServices"/>
<label xml:lang="en-US" xlink:label="us-gaap_AdjustmentOfWarrantsGrantedForServices_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Amortization of warrants issued for services </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentOfWarrantsGrantedForServices" xlink:to="us-gaap_AdjustmentOfWarrantsGrantedForServices_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_AdjustmentOfWarrantsGrantedForServices_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Adjustment Of Warrants Granted For Services </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract"/>
<label xml:lang="en-US" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Increase (decrease) in cash resulting from changes in: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Increase Decrease In Operating Capital [Abstract] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable"/>
<label xml:lang="en-US" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Accounts receivable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:to="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Increase Decrease In Accounts Receivable </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInInventories"/>
<label xml:lang="en-US" xlink:label="us-gaap_IncreaseDecreaseInInventories_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Inventory </label>
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<label xml:lang="en-US" xlink:label="us-gaap_IncreaseDecreaseInInventories_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Increase Decrease In Inventories </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets"/>
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<label xml:lang="en-US" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Increase Decrease In Prepaid Deferred Expense And Other Assets </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable"/>
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<label xml:lang="en-US" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Increase Decrease In Accounts Payable </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilities"/>
<label xml:lang="en-US" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilities_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accrued expenses </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:to="us-gaap_IncreaseDecreaseInAccruedLiabilities_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilities_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Increase Decrease In Accrued Liabilities </label>
<label xml:lang="en-US" xlink:label="onvo_IncreaseDecreaseInDeferredRent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Deferred rent </label>
<label xml:lang="en-US" xlink:label="onvo_IncreaseDecreaseInDeferredRent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Increase Decrease In Deferred Rent </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInDeferredRevenue"/>
<label xml:lang="en-US" xlink:label="us-gaap_IncreaseDecreaseInDeferredRevenue_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Deferred revenue </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:to="us-gaap_IncreaseDecreaseInDeferredRevenue_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_IncreaseDecreaseInDeferredRevenue_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Increase Decrease In Deferred Revenue </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations"/>
<label xml:lang="en-US" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Net cash used in operating activities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Net Cash Provided By Used In Operating Activities Continuing Operations </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract"/>
<label xml:lang="en-US" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Cash Flows From Investing Activities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Net Cash Provided By Used In Investing Activities Continuing Operations [Abstract] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:type="locator" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
<label xml:lang="en-US" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Purchases of fixed assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Payments To Acquire Property Plant And Equipment </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations"/>
<label xml:lang="en-US" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Net cash used in investing activities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Net Cash Provided By Used In Investing Activities Continuing Operations </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract"/>
<label xml:lang="en-US" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Cash Flows From Financing Activities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Net Cash Provided By Used In Financing Activities Continuing Operations [Abstract] </label>
<label xml:lang="en-US" xlink:label="onvo_ProceedsFromIssuanceOfCommonStockAndWarrants_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Proceeds from issuance of common stock and exercise of warrants, net </label>
<label xml:lang="en-US" xlink:label="onvo_ProceedsFromIssuanceOfCommonStockAndWarrants_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Proceeds From Issuance Of Common Stock And Warrants </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromStockOptionsExercised" xlink:type="locator" xlink:label="us-gaap_ProceedsFromStockOptionsExercised"/>
<label xml:lang="en-US" xlink:label="us-gaap_ProceedsFromStockOptionsExercised_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Proceeds from exercise of stock options </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromStockOptionsExercised" xlink:to="us-gaap_ProceedsFromStockOptionsExercised_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ProceedsFromStockOptionsExercised_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Proceeds From Stock Options Exercised </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RepaymentsOfDebtAndCapitalLeaseObligations" xlink:type="locator" xlink:label="us-gaap_RepaymentsOfDebtAndCapitalLeaseObligations"/>
<label xml:lang="en-US" xlink:label="us-gaap_RepaymentsOfDebtAndCapitalLeaseObligations_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Principal payments on capital lease obligations </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RepaymentsOfDebtAndCapitalLeaseObligations" xlink:to="us-gaap_RepaymentsOfDebtAndCapitalLeaseObligations_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_RepaymentsOfDebtAndCapitalLeaseObligations_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Repayments Of Debt And Capital Lease Obligations </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations"/>
<label xml:lang="en-US" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Net cash provided by financing activities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Net Cash Provided By Used In Financing Activities Continuing Operations </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:type="locator" xlink:label="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease"/>
<label xml:lang="en-US" xlink:label="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Net Increase (Decrease) in Cash and Cash Equivalents </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Cash And Cash Equivalents Period Increase Decrease </label>
<label xml:lang="en-US" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Cash and Cash Equivalents at Beginning of Period </label>
<label xml:lang="en-US" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Cash and Cash Equivalents at End of Period </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:type="locator" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract"/>
<label xml:lang="en-US" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Supplemental Disclosure of Cash Flow Information: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SupplementalCashFlowInformationAbstract" xlink:to="us-gaap_SupplementalCashFlowInformationAbstract_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Supplemental Cash Flow Information [Abstract] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InterestPaid" xlink:type="locator" xlink:label="us-gaap_InterestPaid"/>
<label xml:lang="en-US" xlink:label="us-gaap_InterestPaid_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Interest </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestPaid" xlink:to="us-gaap_InterestPaid_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_InterestPaid_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Interest Paid </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeTaxesPaid" xlink:type="locator" xlink:label="us-gaap_IncomeTaxesPaid"/>
<label xml:lang="en-US" xlink:label="us-gaap_IncomeTaxesPaid_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Income Taxes </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxesPaid" xlink:to="us-gaap_IncomeTaxesPaid_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_IncomeTaxesPaid_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Income Taxes Paid </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromWarrantExercises" xlink:type="locator" xlink:label="us-gaap_ProceedsFromWarrantExercises"/>
<label xml:lang="en-US" xlink:label="us-gaap_ProceedsFromWarrantExercises_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Warrant liability reduced </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromWarrantExercises" xlink:to="us-gaap_ProceedsFromWarrantExercises_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ProceedsFromWarrantExercises_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Proceeds From Warrant Exercises </label>
<loc xlink:href="onvo-20150630.xsd#onvo_LeaseholdImprovementsFundedByLeaseIncentive" xlink:type="locator" xlink:label="onvo_LeaseholdImprovementsFundedByLeaseIncentive"/>
<label xml:lang="en-US" xlink:label="onvo_LeaseholdImprovementsFundedByLeaseIncentive_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Leasehold improvements funded by lease incentive. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_LeaseholdImprovementsFundedByLeaseIncentive" xlink:to="onvo_LeaseholdImprovementsFundedByLeaseIncentive_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_LeaseholdImprovementsFundedByLeaseIncentive_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Leasehold improvements </label>
<label xml:lang="en-US" xlink:label="onvo_LeaseholdImprovementsFundedByLeaseIncentive_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Leasehold Improvements Funded By Lease Incentive </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:type="locator" xlink:label="us-gaap_AccountingPoliciesAbstract"/>
<label xml:lang="en-US" xlink:label="us-gaap_AccountingPoliciesAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Accounting Policies [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_AccountingPoliciesAbstract_lbl"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock" xlink:type="locator" xlink:label="us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock"/>
<label xml:lang="en-US" xlink:label="us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Description of Business and Summary of Significant Accounting Policies </label>
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<label xml:lang="en-US" xlink:label="us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Organization Consolidation Basis Of Presentation Business Description And Accounting Policies [Text Block] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract" xlink:type="locator" xlink:label="us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract"/>
<label xml:lang="en-US" xlink:label="us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Derivative Instruments And Hedging Activities Disclosure [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract" xlink:to="us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract_lbl"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock" xlink:type="locator" xlink:label="us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock"/>
<label xml:lang="en-US" xlink:label="us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Derivative Liability </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock" xlink:to="us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_lbl"/>
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<label xml:lang="en-US" xlink:label="us-gaap_CommitmentsDisclosureTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Commitments and Contingencies </label>
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<label xml:lang="en-US" xlink:label="us-gaap_CommitmentsDisclosureTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Commitments Disclosure [Text Block] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RisksAndUncertaintiesAbstract" xlink:type="locator" xlink:label="us-gaap_RisksAndUncertaintiesAbstract"/>
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<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RisksAndUncertaintiesAbstract" xlink:to="us-gaap_RisksAndUncertaintiesAbstract_lbl"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ConcentrationRiskDisclosureTextBlock" xlink:type="locator" xlink:label="us-gaap_ConcentrationRiskDisclosureTextBlock"/>
<label xml:lang="en-US" xlink:label="us-gaap_ConcentrationRiskDisclosureTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Concentrations </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConcentrationRiskDisclosureTextBlock" xlink:to="us-gaap_ConcentrationRiskDisclosureTextBlock_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ConcentrationRiskDisclosureTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Concentration Risk Disclosure [Text Block] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AccountingChangesAndErrorCorrectionsAbstract" xlink:type="locator" xlink:label="us-gaap_AccountingChangesAndErrorCorrectionsAbstract"/>
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<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock" xlink:type="locator" xlink:label="us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock"/>
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<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock" xlink:to="us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_lbl"/>
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<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsequentEventsAbstract" xlink:type="locator" xlink:label="us-gaap_SubsequentEventsAbstract"/>
<label xml:lang="en-US" xlink:label="us-gaap_SubsequentEventsAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Subsequent Events [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventsAbstract" xlink:to="us-gaap_SubsequentEventsAbstract_lbl"/>
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<label xml:lang="en-US" xlink:label="us-gaap_SubsequentEventsTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Subsequent Events </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventsTextBlock" xlink:to="us-gaap_SubsequentEventsTextBlock_lbl"/>
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<loc xlink:href="onvo-20150630.xsd#onvo_NatureOfOperationsAndBasisOfPresentationPolicyTextBlock" xlink:type="locator" xlink:label="onvo_NatureOfOperationsAndBasisOfPresentationPolicyTextBlock"/>
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<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UseOfEstimates" xlink:type="locator" xlink:label="us-gaap_UseOfEstimates"/>
<label xml:lang="en-US" xlink:label="us-gaap_UseOfEstimates_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Use of estimates </label>
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<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueOfFinancialInstrumentsPolicy" xlink:type="locator" xlink:label="us-gaap_FairValueOfFinancialInstrumentsPolicy"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueOfFinancialInstrumentsPolicy_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Financial instruments </label>
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<label xml:lang="en-US" xlink:label="us-gaap_FairValueOfFinancialInstrumentsPolicy_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Of Financial Instruments Policy </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsUnrestrictedCashAndCashEquivalentsPolicy" xlink:type="locator" xlink:label="us-gaap_CashAndCashEquivalentsUnrestrictedCashAndCashEquivalentsPolicy"/>
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<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativesPolicyTextBlock" xlink:type="locator" xlink:label="us-gaap_DerivativesPolicyTextBlock"/>
<label xml:lang="en-US" xlink:label="us-gaap_DerivativesPolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Derivative financial instruments </label>
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<label xml:lang="en-US" xlink:label="us-gaap_DerivativesPolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Derivatives Policy [Text Block] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy" xlink:type="locator" xlink:label="us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy"/>
<label xml:lang="en-US" xlink:label="us-gaap_CashAndCashEquivalentsRestrictedCashAndCashEquivalentsPolicy_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Restricted cash </label>
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<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InventoryPolicyTextBlock" xlink:type="locator" xlink:label="us-gaap_InventoryPolicyTextBlock"/>
<label xml:lang="en-US" xlink:label="us-gaap_InventoryPolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Inventory </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoryPolicyTextBlock" xlink:to="us-gaap_InventoryPolicyTextBlock_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_InventoryPolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Inventory Policy [Text Block] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock"/>
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<label xml:lang="en-US" xlink:label="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Property Plant And Equipment Policy [Text Block] </label>
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<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementPolicyPolicyTextBlock" xlink:type="locator" xlink:label="us-gaap_FairValueMeasurementPolicyPolicyTextBlock"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueMeasurementPolicyPolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Fair value measurement </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueMeasurementPolicyPolicyTextBlock" xlink:to="us-gaap_FairValueMeasurementPolicyPolicyTextBlock_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueMeasurementPolicyPolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Measurement Policy Policy [Text Block] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ResearchAndDevelopmentExpensePolicy" xlink:type="locator" xlink:label="us-gaap_ResearchAndDevelopmentExpensePolicy"/>
<label xml:lang="en-US" xlink:label="us-gaap_ResearchAndDevelopmentExpensePolicy_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Research and development </label>
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<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeTaxPolicyTextBlock" xlink:type="locator" xlink:label="us-gaap_IncomeTaxPolicyTextBlock"/>
<label xml:lang="en-US" xlink:label="us-gaap_IncomeTaxPolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Income taxes </label>
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<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RevenueRecognitionPolicyTextBlock" xlink:type="locator" xlink:label="us-gaap_RevenueRecognitionPolicyTextBlock"/>
<label xml:lang="en-US" xlink:label="us-gaap_RevenueRecognitionPolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Revenue recognition </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenueRecognitionPolicyTextBlock" xlink:to="us-gaap_RevenueRecognitionPolicyTextBlock_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_RevenueRecognitionPolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Revenue Recognition Policy [Text Block] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RevenueRecognitionMultipleElementArrangements" xlink:type="locator" xlink:label="us-gaap_RevenueRecognitionMultipleElementArrangements"/>
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<label xml:lang="en-US" xlink:label="us-gaap_RevenueRecognitionMultipleElementArrangements_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Revenue Recognition Multiple Element Arrangements </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RevenueRecognitionSalesOfGoods" xlink:type="locator" xlink:label="us-gaap_RevenueRecognitionSalesOfGoods"/>
<label xml:lang="en-US" xlink:label="us-gaap_RevenueRecognitionSalesOfGoods_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Product revenue </label>
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<label xml:lang="en-US" xlink:label="us-gaap_RevenueRecognitionSalesOfGoods_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Revenue Recognition Sales Of Goods </label>
<loc xlink:href="onvo-20150630.xsd#onvo_RevenueRecognitionSingleElementArrangementsPolicyTextBlock" xlink:type="locator" xlink:label="onvo_RevenueRecognitionSingleElementArrangementsPolicyTextBlock"/>
<label xml:lang="en-US" xlink:label="onvo_RevenueRecognitionSingleElementArrangementsPolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Revenue recognition single element arrangements. </label>
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<label xml:lang="en-US" xlink:label="onvo_RevenueRecognitionSingleElementArrangementsPolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Revenue from research service agreements </label>
<label xml:lang="en-US" xlink:label="onvo_RevenueRecognitionSingleElementArrangementsPolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Revenue Recognition Single Element Arrangements Policy [Text Block] </label>
<loc xlink:href="onvo-20150630.xsd#onvo_RevenueRecognitionResearchAndDevelopmentRevenuePolicyTextBlock" xlink:type="locator" xlink:label="onvo_RevenueRecognitionResearchAndDevelopmentRevenuePolicyTextBlock"/>
<label xml:lang="en-US" xlink:label="onvo_RevenueRecognitionResearchAndDevelopmentRevenuePolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Revenue recognition research and development revenue. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_RevenueRecognitionResearchAndDevelopmentRevenuePolicyTextBlock" xlink:to="onvo_RevenueRecognitionResearchAndDevelopmentRevenuePolicyTextBlock_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_RevenueRecognitionResearchAndDevelopmentRevenuePolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Research and development revenue under collaborative agreements </label>
<label xml:lang="en-US" xlink:label="onvo_RevenueRecognitionResearchAndDevelopmentRevenuePolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Revenue Recognition Research And Development Revenue Policy [Text Block] </label>
<loc xlink:href="onvo-20150630.xsd#onvo_RevenueRecognitionGrantPolicyTextBlock" xlink:type="locator" xlink:label="onvo_RevenueRecognitionGrantPolicyTextBlock"/>
<label xml:lang="en-US" xlink:label="onvo_RevenueRecognitionGrantPolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Revenue recognition grant. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_RevenueRecognitionGrantPolicyTextBlock" xlink:to="onvo_RevenueRecognitionGrantPolicyTextBlock_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_RevenueRecognitionGrantPolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Grant revenues </label>
<label xml:lang="en-US" xlink:label="onvo_RevenueRecognitionGrantPolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Revenue Recognition Grant Policy [Text Block] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Stock-based compensation </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:to="us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Option And Incentive Plans Policy </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ComprehensiveIncomePolicyPolicyTextBlock" xlink:type="locator" xlink:label="us-gaap_ComprehensiveIncomePolicyPolicyTextBlock"/>
<label xml:lang="en-US" xlink:label="us-gaap_ComprehensiveIncomePolicyPolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Comprehensive income (loss) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomePolicyPolicyTextBlock" xlink:to="us-gaap_ComprehensiveIncomePolicyPolicyTextBlock_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ComprehensiveIncomePolicyPolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Comprehensive Income Policy Policy [Text Block] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EarningsPerSharePolicyTextBlock" xlink:type="locator" xlink:label="us-gaap_EarningsPerSharePolicyTextBlock"/>
<label xml:lang="en-US" xlink:label="us-gaap_EarningsPerSharePolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Net loss per share </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerSharePolicyTextBlock" xlink:to="us-gaap_EarningsPerSharePolicyTextBlock_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_EarningsPerSharePolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Earnings Per Share Policy [Text Block] </label>
<loc xlink:href="onvo-20150630.xsd#onvo_LiquidityPolicyTextBlock" xlink:type="locator" xlink:label="onvo_LiquidityPolicyTextBlock"/>
<label xml:lang="en-US" xlink:label="onvo_LiquidityPolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Liquidity policy. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_LiquidityPolicyTextBlock" xlink:to="onvo_LiquidityPolicyTextBlock_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_LiquidityPolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Liquidity </label>
<label xml:lang="en-US" xlink:label="onvo_LiquidityPolicyTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Liquidity Policy [Text Block] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisTextBlock" xlink:type="locator" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisTextBlock"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Estimated Fair Values of Liabilities Measured on Recurring Basis </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisTextBlock" xlink:to="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisTextBlock_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Liabilities Measured On Recurring Basis [Text Block] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" xlink:type="locator" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Activity for Liabilities Measured at Estimated Fair Value Using Unobservable Inputs </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock" xlink:to="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Text Block] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfDerivativeInstrumentsTextBlock" xlink:type="locator" xlink:label="us-gaap_ScheduleOfDerivativeInstrumentsTextBlock"/>
<label xml:lang="en-US" xlink:label="us-gaap_ScheduleOfDerivativeInstrumentsTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Assumptions Used to Value Derivative Liabilities at End of Each Reporting Period </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfDerivativeInstrumentsTextBlock" xlink:to="us-gaap_ScheduleOfDerivativeInstrumentsTextBlock_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ScheduleOfDerivativeInstrumentsTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Schedule Of Derivative Instruments [Text Block] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock" xlink:type="locator" xlink:label="us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock"/>
<label xml:lang="en-US" xlink:label="us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Summary of Company's Restricted Stock Award Activity </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock" xlink:to="us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Schedule Of Share Based Compensation Restricted Stock Units Award Activity Table [Text Block] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" xlink:type="locator" xlink:label="us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock"/>
<label xml:lang="en-US" xlink:label="us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Summary of Stock Option Activity </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" xlink:to="us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Schedule Of Share Based Compensation Stock Options Activity Table [Text Block] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" xlink:type="locator" xlink:label="us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock"/>
<label xml:lang="en-US" xlink:label="us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Fair Value of Employee Stock Options </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" xlink:to="us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Schedule Of Share Based Payment Award Stock Options Valuation Assumptions Table [Text Block] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock" xlink:type="locator" xlink:label="us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock"/>
<label xml:lang="en-US" xlink:label="us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Summary of Warrant Activity </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock" xlink:to="us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Schedule Of Stockholders Equity Note Warrants Or Rights [Text Block] </label>
<loc xlink:href="onvo-20150630.xsd#onvo_CommonStockCapitalSharesReservedForFutureIssuanceTableTextBlock" xlink:type="locator" xlink:label="onvo_CommonStockCapitalSharesReservedForFutureIssuanceTableTextBlock"/>
<label xml:lang="en-US" xlink:label="onvo_CommonStockCapitalSharesReservedForFutureIssuanceTableTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Common stock capital shares reserved for future issuance. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_CommonStockCapitalSharesReservedForFutureIssuanceTableTextBlock" xlink:to="onvo_CommonStockCapitalSharesReservedForFutureIssuanceTableTextBlock_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_CommonStockCapitalSharesReservedForFutureIssuanceTableTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Common Stock Reserved for Future Issuance </label>
<label xml:lang="en-US" xlink:label="onvo_CommonStockCapitalSharesReservedForFutureIssuanceTableTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Common Stock Capital Shares Reserved For Future Issuance Table [Text Block] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" xlink:type="locator" xlink:label="us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock"/>
<label xml:lang="en-US" xlink:label="us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Future Minimum Rental Payments Required under Operating Leases that have Initial or Remaining Non-Cancelable Lease Terms in Excess of One Year </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" xlink:to="us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Schedule Of Future Minimum Rental Payments For Operating Leases Table [Text Block] </label>
<loc xlink:href="onvo-20150630.xsd#onvo_DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesLineItems" xlink:type="locator" xlink:label="onvo_DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesLineItems"/>
<label xml:lang="en-US" xlink:label="onvo_DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesLineItems_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Description of business and summary of significant accounting policies. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesLineItems" xlink:to="onvo_DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesLineItems_lbl"/>
<loc xlink:href="onvo-20150630.xsd#onvo_DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesTable" xlink:type="locator" xlink:label="onvo_DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesTable"/>
<label xml:lang="en-US" xlink:label="onvo_DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesTable_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Description of business and summary of significant accounting policies. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesTable" xlink:to="onvo_DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesTable_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesTable_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Description Of Business And Summary Of Significant Accounting Policies [Table] </label>
<label xml:lang="en-US" xlink:label="onvo_DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesTable_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Description Of Business And Summary Of Significant Accounting Policies [Table] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RangeAxis" xlink:type="locator" xlink:label="us-gaap_RangeAxis"/>
<label xml:lang="en-US" xlink:label="us-gaap_RangeAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Range </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RangeAxis" xlink:to="us-gaap_RangeAxis_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_RangeAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Range [Axis] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RangeMember" xlink:type="locator" xlink:label="us-gaap_RangeMember"/>
<label xml:lang="en-US" xlink:label="us-gaap_RangeMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Range Member </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RangeMember" xlink:to="us-gaap_RangeMember_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_RangeMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Range [Member] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MaximumMember" xlink:type="locator" xlink:label="us-gaap_MaximumMember"/>
<label xml:lang="en-US" xlink:label="us-gaap_MaximumMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Maximum [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MaximumMember" xlink:to="us-gaap_MaximumMember_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_MaximumMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Maximum [Member] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_MinimumMember" xlink:type="locator" xlink:label="us-gaap_MinimumMember"/>
<label xml:lang="en-US" xlink:label="us-gaap_MinimumMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Minimum [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MinimumMember" xlink:to="us-gaap_MinimumMember_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_MinimumMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Minimum [Member] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis" xlink:type="locator" xlink:label="us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis"/>
<label xml:lang="en-US" xlink:label="us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Long Term Purchase Commitment By Category Of Item Purchased </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis" xlink:to="us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Long Term Purchase Commitment By Category Of Item Purchased [Axis] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain" xlink:type="locator" xlink:label="us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain"/>
<label xml:lang="en-US" xlink:label="us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Long Term Purchase Commitment Category Of Item Purchased </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain" xlink:to="us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Long Term Purchase Commitment Category Of Item Purchased [Domain] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ResearchAndDevelopmentArrangementMember" xlink:type="locator" xlink:label="us-gaap_ResearchAndDevelopmentArrangementMember"/>
<label xml:lang="en-US" xlink:label="us-gaap_ResearchAndDevelopmentArrangementMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Research and Development Services [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ResearchAndDevelopmentArrangementMember" xlink:to="us-gaap_ResearchAndDevelopmentArrangementMember_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ResearchAndDevelopmentArrangementMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Research And Development Arrangement [Member] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredRevenueArrangementTypeAxis" xlink:type="locator" xlink:label="us-gaap_DeferredRevenueArrangementTypeAxis"/>
<label xml:lang="en-US" xlink:label="us-gaap_DeferredRevenueArrangementTypeAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Deferred Revenue Arrangement Type </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredRevenueArrangementTypeAxis" xlink:to="us-gaap_DeferredRevenueArrangementTypeAxis_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_DeferredRevenueArrangementTypeAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Deferred Revenue Arrangement Type [Axis] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredRevenueArrangementTypeDomain" xlink:type="locator" xlink:label="us-gaap_DeferredRevenueArrangementTypeDomain"/>
<label xml:lang="en-US" xlink:label="us-gaap_DeferredRevenueArrangementTypeDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Deferred Revenue Arrangement Type </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredRevenueArrangementTypeDomain" xlink:to="us-gaap_DeferredRevenueArrangementTypeDomain_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_DeferredRevenueArrangementTypeDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Deferred Revenue Arrangement Type [Domain] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_UpFrontPaymentArrangementMember" xlink:type="locator" xlink:label="us-gaap_UpFrontPaymentArrangementMember"/>
<label xml:lang="en-US" xlink:label="us-gaap_UpFrontPaymentArrangementMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Up Front Payment Arrangement [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UpFrontPaymentArrangementMember" xlink:to="us-gaap_UpFrontPaymentArrangementMember_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_UpFrontPaymentArrangementMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Up Front Payment Arrangement [Member] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PrincipleTransactionRevenueDescriptionOfReportingCategoryAxis" xlink:type="locator" xlink:label="us-gaap_PrincipleTransactionRevenueDescriptionOfReportingCategoryAxis"/>
<label xml:lang="en-US" xlink:label="us-gaap_PrincipleTransactionRevenueDescriptionOfReportingCategoryAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Principle Transaction Revenue Description Of Reporting Category </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PrincipleTransactionRevenueDescriptionOfReportingCategoryAxis" xlink:to="us-gaap_PrincipleTransactionRevenueDescriptionOfReportingCategoryAxis_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_PrincipleTransactionRevenueDescriptionOfReportingCategoryAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Principle Transaction Revenue Description Of Reporting Category [Axis] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_NameOfReportingCategoryDomain" xlink:type="locator" xlink:label="us-gaap_NameOfReportingCategoryDomain"/>
<label xml:lang="en-US" xlink:label="us-gaap_NameOfReportingCategoryDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Name Of Reporting Category </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NameOfReportingCategoryDomain" xlink:to="us-gaap_NameOfReportingCategoryDomain_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_NameOfReportingCategoryDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Name Of Reporting Category [Domain] </label>
<loc xlink:href="onvo-20150630.xsd#onvo_PrivateMember" xlink:type="locator" xlink:label="onvo_PrivateMember"/>
<label xml:lang="en-US" xlink:label="onvo_PrivateMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Private. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_PrivateMember" xlink:to="onvo_PrivateMember_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_PrivateMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Private, Not-for-Profit Organization [Member] </label>
<label xml:lang="en-US" xlink:label="onvo_PrivateMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Private [Member] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ResearchAndDevelopmentArrangementContractToPerformForOthersByTypeAxis" xlink:type="locator" xlink:label="us-gaap_ResearchAndDevelopmentArrangementContractToPerformForOthersByTypeAxis"/>
<label xml:lang="en-US" xlink:label="us-gaap_ResearchAndDevelopmentArrangementContractToPerformForOthersByTypeAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Research And Development Arrangement Contract To Perform For Others By Type </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ResearchAndDevelopmentArrangementContractToPerformForOthersByTypeAxis" xlink:to="us-gaap_ResearchAndDevelopmentArrangementContractToPerformForOthersByTypeAxis_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ResearchAndDevelopmentArrangementContractToPerformForOthersByTypeAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Research And Development Arrangement Contract To Perform For Others By Type [Axis] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ResearchAndDevelopmentArrangementContractToPerformForOthersTypeDomain" xlink:type="locator" xlink:label="us-gaap_ResearchAndDevelopmentArrangementContractToPerformForOthersTypeDomain"/>
<label xml:lang="en-US" xlink:label="us-gaap_ResearchAndDevelopmentArrangementContractToPerformForOthersTypeDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Research And Development Arrangement Contract To Perform For Others Type </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ResearchAndDevelopmentArrangementContractToPerformForOthersTypeDomain" xlink:to="us-gaap_ResearchAndDevelopmentArrangementContractToPerformForOthersTypeDomain_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ResearchAndDevelopmentArrangementContractToPerformForOthersTypeDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Research And Development Arrangement Contract To Perform For Others Type [Domain] </label>
<loc xlink:href="onvo-20150630.xsd#onvo_NationalInstituteOfHealthResearchGrantMember" xlink:type="locator" xlink:label="onvo_NationalInstituteOfHealthResearchGrantMember"/>
<label xml:lang="en-US" xlink:label="onvo_NationalInstituteOfHealthResearchGrantMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> National Institute of Health research grant. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_NationalInstituteOfHealthResearchGrantMember" xlink:to="onvo_NationalInstituteOfHealthResearchGrantMember_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_NationalInstituteOfHealthResearchGrantMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> NIH Research Grants [Member] </label>
<label xml:lang="en-US" xlink:label="onvo_NationalInstituteOfHealthResearchGrantMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> National Institute Of Health Research Grant [Member] </label>
<label xml:lang="en-US" xlink:label="onvo_DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesLineItems_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Description Of Business And Summary Of Significant Accounting Policies [Line Items] </label>
<label xml:lang="en-US" xlink:label="onvo_DescriptionOfBusinessAndSummaryOfSignificantAccountingPoliciesLineItems_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Description Of Business And Summary Of Significant Accounting Policies [Line Items] </label>
<label xml:lang="en-US" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Cash flow from operations </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues"/>
<label xml:lang="en-US" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Sale of common stock shares </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:to="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Stock Issued During Period Shares New Issues </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:type="locator" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock"/>
<label xml:lang="en-US" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Gross proceeds from sale of common stock shares </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:to="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Proceeds From Issuance Of Common Stock </label>
<loc xlink:href="onvo-20150630.xsd#onvo_CashAndCashEquivalentsMaturityPeriod" xlink:type="locator" xlink:label="onvo_CashAndCashEquivalentsMaturityPeriod"/>
<label xml:lang="en-US" xlink:label="onvo_CashAndCashEquivalentsMaturityPeriod_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Cash and cash equivalents maturity period. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_CashAndCashEquivalentsMaturityPeriod" xlink:to="onvo_CashAndCashEquivalentsMaturityPeriod_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_CashAndCashEquivalentsMaturityPeriod_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Maturity of highly liquid investment </label>
<label xml:lang="en-US" xlink:label="onvo_CashAndCashEquivalentsMaturityPeriod_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Cash And Cash Equivalents Maturity Period </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_InventoryValuationReserves" xlink:type="locator" xlink:label="us-gaap_InventoryValuationReserves"/>
<label xml:lang="en-US" xlink:label="us-gaap_InventoryValuationReserves_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Obsolete inventory reserve </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoryValuationReserves" xlink:to="us-gaap_InventoryValuationReserves_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_InventoryValuationReserves_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Inventory Valuation Reserves </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives" xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives"/>
<label xml:lang="en-US" xlink:label="us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Estimated useful life of the fixed assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives" xlink:to="us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_PropertyPlantAndEquipmentEstimatedUsefulLives_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Property Plant And Equipment Estimated Useful Lives </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLife"/>
<label xml:lang="en-US" xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLife_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Useful life of fixed assets, range </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:to="us-gaap_PropertyPlantAndEquipmentUsefulLife_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLife_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Property Plant And Equipment Useful Life </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ImpairmentOfLongLivedAssetsHeldForUse" xlink:type="locator" xlink:label="us-gaap_ImpairmentOfLongLivedAssetsHeldForUse"/>
<label xml:lang="en-US" xlink:label="us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Impairment of long-lived assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ImpairmentOfLongLivedAssetsHeldForUse" xlink:to="us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ImpairmentOfLongLivedAssetsHeldForUse_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Impairment Of Long Lived Assets Held For Use </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:type="locator" xlink:label="us-gaap_FairValueDisclosuresAbstract"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueDisclosuresAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Disclosures [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueDisclosuresAbstract" xlink:to="us-gaap_FairValueDisclosuresAbstract_lbl"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:type="locator" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:to="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeByNatureAxis" xlink:type="locator" xlink:label="us-gaap_DerivativeByNatureAxis"/>
<label xml:lang="en-US" xlink:label="us-gaap_DerivativeByNatureAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Derivative By Nature </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DerivativeByNatureAxis" xlink:to="us-gaap_DerivativeByNatureAxis_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_DerivativeByNatureAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Derivative By Nature [Axis] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeNameDomain" xlink:type="locator" xlink:label="us-gaap_DerivativeNameDomain"/>
<label xml:lang="en-US" xlink:label="us-gaap_DerivativeNameDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Derivative Name </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DerivativeNameDomain" xlink:to="us-gaap_DerivativeNameDomain_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_DerivativeNameDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Derivative Name [Domain] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_WarrantMember" xlink:type="locator" xlink:label="us-gaap_WarrantMember"/>
<label xml:lang="en-US" xlink:label="us-gaap_WarrantMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Warrants [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WarrantMember" xlink:to="us-gaap_WarrantMember_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_WarrantMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Warrant [Member] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:type="locator" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Fair Value By Fair Value Hierarchy Level </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:to="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value By Fair Value Hierarchy Level [Axis] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:type="locator" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Fair Value Measurements Fair Value Hierarchy </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:to="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Measurements Fair Value Hierarchy [Domain] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:type="locator" xlink:label="us-gaap_FairValueInputsLevel1Member"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Quoted Prices in Active Markets (Level 1) [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueInputsLevel1Member" xlink:to="us-gaap_FairValueInputsLevel1Member_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueInputsLevel1Member_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Inputs Level1 [Member] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:type="locator" xlink:label="us-gaap_FairValueInputsLevel2Member"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Significant Other Observable Inputs (Level 2) [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueInputsLevel2Member" xlink:to="us-gaap_FairValueInputsLevel2Member_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueInputsLevel2Member_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Inputs Level2 [Member] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:type="locator" xlink:label="us-gaap_FairValueInputsLevel3Member"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Significant Other Unobservable Inputs (Level 3) [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueInputsLevel3Member" xlink:to="us-gaap_FairValueInputsLevel3Member_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueInputsLevel3Member_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Inputs Level3 [Member] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis" xlink:type="locator" xlink:label="us-gaap_FairValueByMeasurementFrequencyAxis"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueByMeasurementFrequencyAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Fair Value By Measurement Frequency </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueByMeasurementFrequencyAxis" xlink:to="us-gaap_FairValueByMeasurementFrequencyAxis_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueByMeasurementFrequencyAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value By Measurement Frequency [Axis] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain" xlink:type="locator" xlink:label="us-gaap_FairValueMeasurementFrequencyDomain"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueMeasurementFrequencyDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Fair Value Measurement Frequency </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueMeasurementFrequencyDomain" xlink:to="us-gaap_FairValueMeasurementFrequencyDomain_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueMeasurementFrequencyDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Measurement Frequency [Domain] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember" xlink:type="locator" xlink:label="us-gaap_FairValueMeasurementsRecurringMember"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueMeasurementsRecurringMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Fair Value, Measurements, Recurring [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueMeasurementsRecurringMember" xlink:to="us-gaap_FairValueMeasurementsRecurringMember_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueMeasurementsRecurringMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Measurements Recurring [Member] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:type="locator" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:to="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue" xlink:type="locator" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Warrant liability </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue" xlink:to="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value </label>
<loc xlink:href="onvo-20150630.xsd#onvo_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityReclassifiedToEquity" xlink:type="locator" xlink:label="onvo_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityReclassifiedToEquity"/>
<label xml:lang="en-US" xlink:label="onvo_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityReclassifiedToEquity_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Fair value measurement with unobservable inputs reconciliation recurring basis liability reclassified to equity. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityReclassifiedToEquity" xlink:to="onvo_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityReclassifiedToEquity_lbl"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable" xlink:type="locator" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable" xlink:to="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Table] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems" xlink:type="locator" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems" xlink:to="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] </label>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Warrant Derivative Liability, Beginning balance </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues" xlink:type="locator" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Issuances </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues" xlink:to="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Issues </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings" xlink:type="locator" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Adjustments to estimated fair value </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings" xlink:to="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements" xlink:type="locator" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Warrant liability removal due to settlements </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements" xlink:to="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements </label>
<label xml:lang="en-US" xlink:label="onvo_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityReclassifiedToEquity_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Warrant liability reclassified to equity </label>
<label xml:lang="en-US" xlink:label="onvo_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityReclassifiedToEquity_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Reclassified To Equity </label>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Warrant Derivative Liability, Ending balance </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DeferredRevenue" xlink:type="locator" xlink:label="us-gaap_DeferredRevenue"/>
<label xml:lang="en-US" xlink:label="us-gaap_DeferredRevenue_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Deferred revenue </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredRevenue" xlink:to="us-gaap_DeferredRevenue_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_DeferredRevenue_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Deferred Revenue </label>
<loc xlink:href="onvo-20150630.xsd#onvo_ResearchGrant" xlink:type="locator" xlink:label="onvo_ResearchGrant"/>
<label xml:lang="en-US" xlink:label="onvo_ResearchGrant_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Research grant. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_ResearchGrant" xlink:to="onvo_ResearchGrant_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_RevenueFromGrants_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Revenue recognized under grants </label>
<label xml:lang="en-US" xlink:label="onvo_ResearchGrant_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Revenue recognized under grants </label>
<label xml:lang="en-US" xlink:label="onvo_ResearchGrant_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Research Grant </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DilutiveSecurities" xlink:type="locator" xlink:label="us-gaap_DilutiveSecurities"/>
<label xml:lang="en-US" xlink:label="us-gaap_DilutiveSecurities_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Dilutive effect </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DilutiveSecurities" xlink:to="us-gaap_DilutiveSecurities_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_DilutiveSecurities_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Dilutive Securities </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:type="locator" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
<label xml:lang="en-US" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Common stock equivalents excluded from computing diluted net loss per share </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:to="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount </label>
<loc xlink:href="onvo-20150630.xsd#onvo_ClassOfWarrantOrRightLife" xlink:type="locator" xlink:label="onvo_ClassOfWarrantOrRightLife"/>
<label xml:lang="en-US" xlink:label="onvo_ClassOfWarrantOrRightLife_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Class of warrant or right life. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_ClassOfWarrantOrRightLife" xlink:to="onvo_ClassOfWarrantOrRightLife_lbl"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeTable" xlink:type="locator" xlink:label="us-gaap_DerivativeTable"/>
<label xml:lang="en-US" xlink:label="us-gaap_DerivativeTable_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Derivative [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DerivativeTable" xlink:to="us-gaap_DerivativeTable_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_DerivativeTable_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Derivative [Table] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeLineItems" xlink:type="locator" xlink:label="us-gaap_DerivativeLineItems"/>
<label xml:lang="en-US" xlink:label="us-gaap_DerivativeLineItems_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Derivative [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DerivativeLineItems" xlink:to="us-gaap_DerivativeLineItems_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_DerivativeLineItems_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Derivative [Line Items] </label>
<label xml:lang="en-US" xlink:label="onvo_ClassOfWarrantOrRightLife_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Warrants maturity term </label>
<label xml:lang="en-US" xlink:label="onvo_ClassOfWarrantOrRightLife_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Class Of Warrant Or Right Life </label>
<label xml:lang="en-US" xlink:label="us-gaap_DerivativeLiabilitiesCurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Estimated fair value of the outstanding warrant liabilities </label>
<loc xlink:href="onvo-20150630.xsd#onvo_NumberOfWarrantExercisedDuringPeriodRecordedAsDerivativeLiability" xlink:type="locator" xlink:label="onvo_NumberOfWarrantExercisedDuringPeriodRecordedAsDerivativeLiability"/>
<label xml:lang="en-US" xlink:label="onvo_NumberOfWarrantExercisedDuringPeriodRecordedAsDerivativeLiability_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Number of warrant exercised during period recorded as derivative liability. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_NumberOfWarrantExercisedDuringPeriodRecordedAsDerivativeLiability" xlink:to="onvo_NumberOfWarrantExercisedDuringPeriodRecordedAsDerivativeLiability_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_NumberOfWarrantExercisedDuringPeriodRecordedAsDerivativeLiability_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Exercised derivative liabilities </label>
<label xml:lang="en-US" xlink:label="onvo_NumberOfWarrantExercisedDuringPeriodRecordedAsDerivativeLiability_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Number Of Warrant Exercised During Period Recorded As Derivative Liability </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable" xlink:type="locator" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable" xlink:to="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Table] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueByLiabilityClassAxis" xlink:type="locator" xlink:label="us-gaap_FairValueByLiabilityClassAxis"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueByLiabilityClassAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Fair Value By Liability Class </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueByLiabilityClassAxis" xlink:to="us-gaap_FairValueByLiabilityClassAxis_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueByLiabilityClassAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value By Liability Class [Axis] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain" xlink:type="locator" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation By Liability Class </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain" xlink:to="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation By Liability Class [Domain] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember" xlink:type="locator" xlink:label="us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember"/>
<label xml:lang="en-US" xlink:label="us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Warrant Derivative Liability [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember" xlink:to="us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Derivative Financial Instruments Liabilities [Member] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems" xlink:type="locator" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems" xlink:to="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SharePrice" xlink:type="locator" xlink:label="us-gaap_SharePrice"/>
<label xml:lang="en-US" xlink:label="us-gaap_SharePrice_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Closing price per share of common stock </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharePrice" xlink:to="us-gaap_SharePrice_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_SharePrice_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Price </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssumptionsExercisePrice" xlink:type="locator" xlink:label="us-gaap_FairValueAssumptionsExercisePrice"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueAssumptionsExercisePrice_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Exercise price per share </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssumptionsExercisePrice" xlink:to="us-gaap_FairValueAssumptionsExercisePrice_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueAssumptionsExercisePrice_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Assumptions Exercise Price </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssumptionsExpectedVolatilityRate" xlink:type="locator" xlink:label="us-gaap_FairValueAssumptionsExpectedVolatilityRate"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueAssumptionsExpectedVolatilityRate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Expected volatility </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssumptionsExpectedVolatilityRate" xlink:to="us-gaap_FairValueAssumptionsExpectedVolatilityRate_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueAssumptionsExpectedVolatilityRate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Assumptions Expected Volatility Rate </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssumptionsRiskFreeInterestRate" xlink:type="locator" xlink:label="us-gaap_FairValueAssumptionsRiskFreeInterestRate"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueAssumptionsRiskFreeInterestRate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Risk-free interest rate </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssumptionsRiskFreeInterestRate" xlink:to="us-gaap_FairValueAssumptionsRiskFreeInterestRate_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueAssumptionsRiskFreeInterestRate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Assumptions Risk Free Interest Rate </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssumptionsExpectedDividendRate" xlink:type="locator" xlink:label="us-gaap_FairValueAssumptionsExpectedDividendRate"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueAssumptionsExpectedDividendRate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Dividend yield </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssumptionsExpectedDividendRate" xlink:to="us-gaap_FairValueAssumptionsExpectedDividendRate_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueAssumptionsExpectedDividendRate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Assumptions Expected Dividend Rate </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_FairValueAssumptionsExpectedTerm" xlink:type="locator" xlink:label="us-gaap_FairValueAssumptionsExpectedTerm"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueAssumptionsExpectedTerm_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Remaining expected term of underlying securities (years) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueAssumptionsExpectedTerm" xlink:to="us-gaap_FairValueAssumptionsExpectedTerm_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_FairValueAssumptionsExpectedTerm_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Fair Value Assumptions Expected Term </label>
<loc xlink:href="onvo-20150630.xsd#onvo_CombinationOfSecuritiesAuthorizedForOfferAndSale" xlink:type="locator" xlink:label="onvo_CombinationOfSecuritiesAuthorizedForOfferAndSale"/>
<label xml:lang="en-US" xlink:label="onvo_CombinationOfSecuritiesAuthorizedForOfferAndSale_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Combination of securities authorized for offer and sale. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_CombinationOfSecuritiesAuthorizedForOfferAndSale" xlink:to="onvo_CombinationOfSecuritiesAuthorizedForOfferAndSale_lbl"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfStockByClassTable" xlink:type="locator" xlink:label="us-gaap_ScheduleOfStockByClassTable"/>
<label xml:lang="en-US" xlink:label="us-gaap_ScheduleOfStockByClassTable_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Schedule Of Stock By Class [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfStockByClassTable" xlink:to="us-gaap_ScheduleOfStockByClassTable_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ScheduleOfStockByClassTable_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Schedule Of Stock By Class [Table] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SubsidiarySaleOfStockAxis" xlink:type="locator" xlink:label="us-gaap_SubsidiarySaleOfStockAxis"/>
<label xml:lang="en-US" xlink:label="us-gaap_SubsidiarySaleOfStockAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Subsidiary Sale Of Stock </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsidiarySaleOfStockAxis" xlink:to="us-gaap_SubsidiarySaleOfStockAxis_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_SubsidiarySaleOfStockAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Subsidiary Sale Of Stock [Axis] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SaleOfStockNameOfTransactionDomain" xlink:type="locator" xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain"/>
<label xml:lang="en-US" xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Sale Of Stock Name Of Transaction </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SaleOfStockNameOfTransactionDomain" xlink:to="us-gaap_SaleOfStockNameOfTransactionDomain_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Sale Of Stock Name Of Transaction [Domain] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IPOMember" xlink:type="locator" xlink:label="us-gaap_IPOMember"/>
<label xml:lang="en-US" xlink:label="us-gaap_IPOMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> IPO [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IPOMember" xlink:to="us-gaap_IPOMember_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_IPOMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> I P O [Member] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PlanNameAxis" xlink:type="locator" xlink:label="us-gaap_PlanNameAxis"/>
<label xml:lang="en-US" xlink:label="us-gaap_PlanNameAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Plan Name </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PlanNameAxis" xlink:to="us-gaap_PlanNameAxis_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_PlanNameAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Plan Name [Axis] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PlanNameDomain" xlink:type="locator" xlink:label="us-gaap_PlanNameDomain"/>
<label xml:lang="en-US" xlink:label="us-gaap_PlanNameDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Plan Name </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PlanNameDomain" xlink:to="us-gaap_PlanNameDomain_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_PlanNameDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Plan Name [Domain] </label>
<loc xlink:href="onvo-20150630.xsd#onvo_UnderwritingAgreementMember" xlink:type="locator" xlink:label="onvo_UnderwritingAgreementMember"/>
<label xml:lang="en-US" xlink:label="onvo_UnderwritingAgreementMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Underwriting agreement. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_UnderwritingAgreementMember" xlink:to="onvo_UnderwritingAgreementMember_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_UnderwritingAgreementMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Underwriting Agreement [Member] </label>
<label xml:lang="en-US" xlink:label="onvo_UnderwritingAgreementMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Underwriting Agreement [Member] </label>
<loc xlink:href="onvo-20150630.xsd#onvo_SecondaryOfferingMember" xlink:type="locator" xlink:label="onvo_SecondaryOfferingMember"/>
<label xml:lang="en-US" xlink:label="onvo_SecondaryOfferingMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Secondary offering member. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_SecondaryOfferingMember" xlink:to="onvo_SecondaryOfferingMember_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_SecondaryOfferingMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Secondary Offering [Member] </label>
<label xml:lang="en-US" xlink:label="onvo_SecondaryOfferingMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Secondary Offering [Member] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OverAllotmentOptionMember" xlink:type="locator" xlink:label="us-gaap_OverAllotmentOptionMember"/>
<label xml:lang="en-US" xlink:label="us-gaap_OverAllotmentOptionMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Over Allotment Option </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OverAllotmentOptionMember" xlink:to="us-gaap_OverAllotmentOptionMember_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_OverAllotmentOptionMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Over Allotment Option [Member] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherCommitmentsAxis" xlink:type="locator" xlink:label="us-gaap_OtherCommitmentsAxis"/>
<label xml:lang="en-US" xlink:label="us-gaap_OtherCommitmentsAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Other Commitments </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherCommitmentsAxis" xlink:to="us-gaap_OtherCommitmentsAxis_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_OtherCommitmentsAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Other Commitments [Axis] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OtherCommitmentsDomain" xlink:type="locator" xlink:label="us-gaap_OtherCommitmentsDomain"/>
<label xml:lang="en-US" xlink:label="us-gaap_OtherCommitmentsDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Other Commitments </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherCommitmentsDomain" xlink:to="us-gaap_OtherCommitmentsDomain_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_OtherCommitmentsDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Other Commitments [Domain] </label>
<loc xlink:href="onvo-20150630.xsd#onvo_EquityDistributionAgreementMember" xlink:type="locator" xlink:label="onvo_EquityDistributionAgreementMember"/>
<label xml:lang="en-US" xlink:label="onvo_EquityDistributionAgreementMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Equity distribution agreement. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_EquityDistributionAgreementMember" xlink:to="onvo_EquityDistributionAgreementMember_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_EquityDistributionAgreementMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Equity Distribution Agreement [Member] </label>
<label xml:lang="en-US" xlink:label="onvo_EquityDistributionAgreementMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Equity Distribution Agreement [Member] </label>
<loc xlink:href="onvo-20150630.xsd#onvo_EquityOfferingSalesAgreementMember" xlink:type="locator" xlink:label="onvo_EquityOfferingSalesAgreementMember"/>
<label xml:lang="en-US" xlink:label="onvo_EquityOfferingSalesAgreementMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Equity offering sales agreement. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_EquityOfferingSalesAgreementMember" xlink:to="onvo_EquityOfferingSalesAgreementMember_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_EquityOfferingSalesAgreementMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Equity Offering Sales Agreement [Member] </label>
<label xml:lang="en-US" xlink:label="onvo_EquityOfferingSalesAgreementMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Equity Offering Sales Agreement [Member] </label>
<loc xlink:href="onvo-20150630.xsd#onvo_EquityIncentivePlanTwoThousandEightMember" xlink:type="locator" xlink:label="onvo_EquityIncentivePlanTwoThousandEightMember"/>
<label xml:lang="en-US" xlink:label="onvo_EquityIncentivePlanTwoThousandEightMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Equity incentive plan. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_EquityIncentivePlanTwoThousandEightMember" xlink:to="onvo_EquityIncentivePlanTwoThousandEightMember_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_EquityIncentivePlanTwoThousandEightMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Equity Incentive Plan 2008 [Member] </label>
<label xml:lang="en-US" xlink:label="onvo_EquityIncentivePlanTwoThousandEightMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Equity Incentive Plan Two Thousand Eight [Member] </label>
<loc xlink:href="onvo-20150630.xsd#onvo_EquityIncentivePlanTwoThousandTwelveMember" xlink:type="locator" xlink:label="onvo_EquityIncentivePlanTwoThousandTwelveMember"/>
<label xml:lang="en-US" xlink:label="onvo_EquityIncentivePlanTwoThousandTwelveMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Equity incentive plan two thousand twelve. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_EquityIncentivePlanTwoThousandTwelveMember" xlink:to="onvo_EquityIncentivePlanTwoThousandTwelveMember_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_EquityIncentivePlanTwoThousandTwelveMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Equity Incentive Plan 2012 [Member] </label>
<label xml:lang="en-US" xlink:label="onvo_EquityIncentivePlanTwoThousandTwelveMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Equity Incentive Plan Two Thousand Twelve [Member] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AwardTypeAxis" xlink:type="locator" xlink:label="us-gaap_AwardTypeAxis"/>
<label xml:lang="en-US" xlink:label="us-gaap_AwardTypeAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Award Type </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AwardTypeAxis" xlink:to="us-gaap_AwardTypeAxis_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_AwardTypeAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Award Type [Axis] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:type="locator" xlink:label="us-gaap_RestrictedStockUnitsRSUMember"/>
<label xml:lang="en-US" xlink:label="us-gaap_RestrictedStockUnitsRSUMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Restricted stock units (RSUs) [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RestrictedStockUnitsRSUMember" xlink:to="us-gaap_RestrictedStockUnitsRSUMember_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_RestrictedStockUnitsRSUMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Restricted Stock Units R S U [Member] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_RestrictedStockMember" xlink:type="locator" xlink:label="us-gaap_RestrictedStockMember"/>
<label xml:lang="en-US" xlink:label="us-gaap_RestrictedStockMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Restricted stock [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RestrictedStockMember" xlink:to="us-gaap_RestrictedStockMember_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_RestrictedStockMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Restricted Stock [Member] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:type="locator" xlink:label="us-gaap_IncomeStatementLocationAxis"/>
<label xml:lang="en-US" xlink:label="us-gaap_IncomeStatementLocationAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Income Statement Location </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeStatementLocationAxis" xlink:to="us-gaap_IncomeStatementLocationAxis_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_IncomeStatementLocationAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Income Statement Location [Axis] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:type="locator" xlink:label="us-gaap_IncomeStatementLocationDomain"/>
<label xml:lang="en-US" xlink:label="us-gaap_IncomeStatementLocationDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Income Statement Location </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeStatementLocationDomain" xlink:to="us-gaap_IncomeStatementLocationDomain_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_IncomeStatementLocationDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Income Statement Location [Domain] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ResearchAndDevelopmentExpenseMember" xlink:type="locator" xlink:label="us-gaap_ResearchAndDevelopmentExpenseMember"/>
<label xml:lang="en-US" xlink:label="us-gaap_ResearchAndDevelopmentExpenseMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Research and development expense [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ResearchAndDevelopmentExpenseMember" xlink:to="us-gaap_ResearchAndDevelopmentExpenseMember_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ResearchAndDevelopmentExpenseMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Research And Development Expense [Member] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_GeneralAndAdministrativeExpenseMember" xlink:type="locator" xlink:label="us-gaap_GeneralAndAdministrativeExpenseMember"/>
<label xml:lang="en-US" xlink:label="us-gaap_GeneralAndAdministrativeExpenseMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> General and administrative expense [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GeneralAndAdministrativeExpenseMember" xlink:to="us-gaap_GeneralAndAdministrativeExpenseMember_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_GeneralAndAdministrativeExpenseMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> General And Administrative Expense [Member] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ClassOfStockLineItems" xlink:type="locator" xlink:label="us-gaap_ClassOfStockLineItems"/>
<label xml:lang="en-US" xlink:label="us-gaap_ClassOfStockLineItems_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Class Of Stock [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfStockLineItems" xlink:to="us-gaap_ClassOfStockLineItems_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ClassOfStockLineItems_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Class Of Stock [Line Items] </label>
<label xml:lang="en-US" xlink:label="onvo_CombinationOfSecuritiesAuthorizedForOfferAndSale_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Securities authorized for offer and sale, amount </label>
<label xml:lang="en-US" xlink:label="onvo_CombinationOfSecuritiesAuthorizedForOfferAndSale_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Combination Of Securities Authorized For Offer And Sale </label>
<label xml:lang="en-US" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Issuance of common stock </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SaleOfStockPricePerShare" xlink:type="locator" xlink:label="us-gaap_SaleOfStockPricePerShare"/>
<label xml:lang="en-US" xlink:label="us-gaap_SaleOfStockPricePerShare_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Offering price per share </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SaleOfStockPricePerShare" xlink:to="us-gaap_SaleOfStockPricePerShare_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_SaleOfStockPricePerShare_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Sale Of Stock Price Per Share </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ProceedsFromIssuanceInitialPublicOffering" xlink:type="locator" xlink:label="us-gaap_ProceedsFromIssuanceInitialPublicOffering"/>
<label xml:lang="en-US" xlink:label="us-gaap_ProceedsFromIssuanceInitialPublicOffering_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Proceeds from issuance of common stock </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceInitialPublicOffering" xlink:to="us-gaap_ProceedsFromIssuanceInitialPublicOffering_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ProceedsFromIssuanceInitialPublicOffering_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Proceeds From Issuance Initial Public Offering </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ExpenseRelatedToDistributionOrServicingAndUnderwritingFees" xlink:type="locator" xlink:label="us-gaap_ExpenseRelatedToDistributionOrServicingAndUnderwritingFees"/>
<label xml:lang="en-US" xlink:label="us-gaap_ExpenseRelatedToDistributionOrServicingAndUnderwritingFees_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Underwriting discounts and commissions and other offering expenses </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ExpenseRelatedToDistributionOrServicingAndUnderwritingFees" xlink:to="us-gaap_ExpenseRelatedToDistributionOrServicingAndUnderwritingFees_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ExpenseRelatedToDistributionOrServicingAndUnderwritingFees_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Expense Related To Distribution Or Servicing And Underwriting Fees </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:type="locator" xlink:label="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
<label xml:lang="en-US" xlink:label="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Number of shares to be offered and sold in equity distribution agreement </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:to="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Sale Of Stock Number Of Shares Issued In Transaction </label>
<label xml:lang="en-US" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Issuance of common stock from stock options exercises, net, Shares </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues"/>
<label xml:lang="en-US" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Value of shares sold under equity distribution agreement </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:to="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Stock Issued During Period Value New Issues </label>
<loc xlink:href="onvo-20150630.xsd#onvo_SaleOfStockPricePerShareNetOfFees" xlink:type="locator" xlink:label="onvo_SaleOfStockPricePerShareNetOfFees"/>
<label xml:lang="en-US" xlink:label="onvo_SaleOfStockPricePerShareNetOfFees_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Sale of stock price per share net of fees. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_SaleOfStockPricePerShareNetOfFees" xlink:to="onvo_SaleOfStockPricePerShareNetOfFees_lbl"/>
<loc xlink:href="onvo-20150630.xsd#onvo_StockOptionExercisablePeriod" xlink:type="locator" xlink:label="onvo_StockOptionExercisablePeriod"/>
<label xml:lang="en-US" xlink:label="onvo_StockOptionExercisablePeriod_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Stock option exercisable period. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_StockOptionExercisablePeriod" xlink:to="onvo_StockOptionExercisablePeriod_lbl"/>
<loc xlink:href="onvo-20150630.xsd#onvo_AdditionalCommonStockIssuedOnExerciseOfOptionByUnderwriters" xlink:type="locator" xlink:label="onvo_AdditionalCommonStockIssuedOnExerciseOfOptionByUnderwriters"/>
<label xml:lang="en-US" xlink:label="onvo_AdditionalCommonStockIssuedOnExerciseOfOptionByUnderwriters_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Additional common stock issued on exercise of option by underwriters. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_AdditionalCommonStockIssuedOnExerciseOfOptionByUnderwriters" xlink:to="onvo_AdditionalCommonStockIssuedOnExerciseOfOptionByUnderwriters_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_SaleOfStockPricePerShareNetOfFees_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Sale of stock price per share net of fees </label>
<label xml:lang="en-US" xlink:label="onvo_SaleOfStockPricePerShareNetOfFees_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Sale Of Stock Price Per Share Net Of Fees </label>
<label xml:lang="en-US" xlink:label="onvo_StockOptionExercisablePeriod_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Stock option exercisable, period </label>
<label xml:lang="en-US" xlink:label="onvo_StockOptionExercisablePeriod_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Stock Option Exercisable Period </label>
<label xml:lang="en-US" xlink:label="onvo_AdditionalCommonStockIssuedOnExerciseOfOptionByUnderwriters_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Additional common stock issued on exercise of option by underwriters </label>
<label xml:lang="en-US" xlink:label="onvo_AdditionalCommonStockIssuedOnExerciseOfOptionByUnderwriters_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Additional Common Stock Issued On Exercise Of Option By Underwriters </label>
<loc xlink:href="onvo-20150630.xsd#onvo_StockholdersEquityDuringPeriodIssuanceOfCommonStockFromWarrantExercises" xlink:type="locator" xlink:label="onvo_StockholdersEquityDuringPeriodIssuanceOfCommonStockFromWarrantExercises"/>
<label xml:lang="en-US" xlink:label="onvo_StockholdersEquityDuringPeriodIssuanceOfCommonStockFromWarrantExercises_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Stockholders equity during period issuance of common stock from warrant exercises. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_StockholdersEquityDuringPeriodIssuanceOfCommonStockFromWarrantExercises" xlink:to="onvo_StockholdersEquityDuringPeriodIssuanceOfCommonStockFromWarrantExercises_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_StockholdersEquityDuringPeriodIssuanceOfCommonStockFromWarrantExercises_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Issuance of common stock from warrant exercises, net, Shares </label>
<label xml:lang="en-US" xlink:label="onvo_StockholdersEquityDuringPeriodIssuanceOfCommonStockFromWarrantExercises_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Stockholders Equity During Period Issuance Of Common Stock From Warrant Exercises </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities"/>
<label xml:lang="en-US" xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Warrants exercised </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:to="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Stock Issued During Period Shares Conversion Of Convertible Securities </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised"/>
<label xml:lang="en-US" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Stock option exercised </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:to="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Stock Issued During Period Shares Stock Options Exercised </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Common shares authorized to be issued </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationDate" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationDate"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationDate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Termination date of Equity Incentive Plan </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationDate" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationDate_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationDate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Expiration Date </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross" xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross"/>
<label xml:lang="en-US" xlink:label="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Shares issued during the year </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross" xlink:to="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Stock Issued During Period Shares Share Based Compensation Gross </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Shares available for issuance </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod" xlink:type="locator" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod"/>
<label xml:lang="en-US" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Termination period of Equity Incentive Plan </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period </label>
<loc xlink:href="onvo-20150630.xsd#onvo_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedCancelledSurrenderedInPeriod" xlink:type="locator" xlink:label="onvo_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedCancelledSurrenderedInPeriod"/>
<label xml:lang="en-US" xlink:label="onvo_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedCancelledSurrenderedInPeriod_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Share based compensation arrangement by share based payment award equity instruments other than options forfeited cancelled surrendered in period. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedCancelledSurrenderedInPeriod" xlink:to="onvo_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedCancelledSurrenderedInPeriod_lbl"/>
<loc xlink:href="onvo-20150630.xsd#onvo_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodUponReturnOfCommonShares" xlink:type="locator" xlink:label="onvo_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodUponReturnOfCommonShares"/>
<label xml:lang="en-US" xlink:label="onvo_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodUponReturnOfCommonShares_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Share based compensation arrangement by share based payment award options grants in period upon return of common shares. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodUponReturnOfCommonShares" xlink:to="onvo_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodUponReturnOfCommonShares_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedCancelledSurrenderedInPeriod_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Restricted stock surrendered </label>
<label xml:lang="en-US" xlink:label="onvo_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedCancelledSurrenderedInPeriod_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited Cancelled Surrendered In Period </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Restricted stock awards vested during the period </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period </label>
<label xml:lang="en-US" xlink:label="onvo_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodUponReturnOfCommonShares_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Stock option granted with immediate vesting </label>
<label xml:lang="en-US" xlink:label="onvo_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodUponReturnOfCommonShares_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Upon Return Of Common Shares </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:type="locator" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
<label xml:lang="en-US" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:to="us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_lbl"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Beginning balance, Unvested, Number of Shares </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Granted, Number of Shares </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period </label>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Vested, Number of Shares </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeituresAndExpirations" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeituresAndExpirations"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeituresAndExpirations_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Canceled / forfeited, Number of Shares </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeituresAndExpirations" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeituresAndExpirations_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsForfeituresAndExpirations_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Non Option Equity Instruments Forfeitures And Expirations </label>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Ending balance, Unvested, Number of Shares </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:type="locator" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense"/>
<label xml:lang="en-US" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Total employee stock-based compensation recorded as operating expenses </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AllocatedShareBasedCompensationExpense" xlink:to="us-gaap_AllocatedShareBasedCompensationExpense_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Allocated Share Based Compensation Expense </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" xlink:type="locator" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions"/>
<label xml:lang="en-US" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Unrecognized restricted stock-based compensation expense </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" xlink:to="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:type="locator" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
<label xml:lang="en-US" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Total unrecognized compensation cost related, weighted average period </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:to="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:type="locator" xlink:label="us-gaap_EmployeeStockOptionMember"/>
<label xml:lang="en-US" xlink:label="us-gaap_EmployeeStockOptionMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Stock options [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeStockOptionMember" xlink:to="us-gaap_EmployeeStockOptionMember_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_EmployeeStockOptionMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Employee Stock Option [Member] </label>
<loc xlink:href="onvo-20150630.xsd#onvo_TwoThousandTwelvePlanMember" xlink:type="locator" xlink:label="onvo_TwoThousandTwelvePlanMember"/>
<label xml:lang="en-US" xlink:label="onvo_TwoThousandTwelvePlanMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Two thousand twelve plan. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_TwoThousandTwelvePlanMember" xlink:to="onvo_TwoThousandTwelvePlanMember_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_TwoThousandTwelvePlanMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> 2012 Plan [Member] </label>
<label xml:lang="en-US" xlink:label="onvo_TwoThousandTwelvePlanMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Two Thousand Twelve Plan [Member] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_VestingAxis" xlink:type="locator" xlink:label="us-gaap_VestingAxis"/>
<label xml:lang="en-US" xlink:label="us-gaap_VestingAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Vesting </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_VestingAxis" xlink:to="us-gaap_VestingAxis_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_VestingAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Vesting [Axis] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_VestingDomain" xlink:type="locator" xlink:label="us-gaap_VestingDomain"/>
<label xml:lang="en-US" xlink:label="us-gaap_VestingDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Vesting </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_VestingDomain" xlink:to="us-gaap_VestingDomain_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_VestingDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Vesting [Domain] </label>
<loc xlink:href="onvo-20150630.xsd#onvo_ShareBasedCompensationAwardYearlyVestingMember" xlink:type="locator" xlink:label="onvo_ShareBasedCompensationAwardYearlyVestingMember"/>
<label xml:lang="en-US" xlink:label="onvo_ShareBasedCompensationAwardYearlyVestingMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Share based compensation Award, yearly vesting. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_ShareBasedCompensationAwardYearlyVestingMember" xlink:to="onvo_ShareBasedCompensationAwardYearlyVestingMember_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_ShareBasedCompensationAwardYearlyVestingMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Yearly Vesting [Member] </label>
<label xml:lang="en-US" xlink:label="onvo_ShareBasedCompensationAwardYearlyVestingMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Award Yearly Vesting [Member] </label>
<label xml:lang="en-US" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Issuances of common stock from stock option exercises, Shares </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Award vesting conditions </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRights_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Rights </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage" xlink:type="locator" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage"/>
<label xml:lang="en-US" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Award vesting percentage </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Sharebased Compensation Arrangement By Sharebased Payment Award Award Vesting Rights Percentage </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Options Outstanding, Beginning balance </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Granted, Options Outstanding </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Canceled, Options Outstanding </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period </label>
<label xml:lang="en-US" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Exercised, Options Outstanding </label>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Options Outstanding, Ending balance </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Vested and Exercisable, Options Outstanding </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Weighted-Average Exercise Price, Options Beginning balance </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Options granted, Weighted-Average Exercise Price </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Options canceled, Weighted-Average Exercise Price </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Options exercised, Weighted-Average Exercise Price </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price </label>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Weighted-Average Exercise Price, Options Ending balance </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Vested and Exercisable, Weighted-Average Exercise Price </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Aggregate Intrinsic Value, Options Beginning balance </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Options Exercised, Aggregate Intrinsic Value </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value </label>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Aggregate Intrinsic Value, Options Ending balance </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" xlink:type="locator" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1"/>
<label xml:lang="en-US" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Vested and Exercisable at December 30, 2014 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:type="locator" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1"/>
<label xml:lang="en-US" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Weighted-average remaining contractual term of options exercisable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:type="locator" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2"/>
<label xml:lang="en-US" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Weighted-average remaining contractual term of options outstanding </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Dividend yield </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Volatility </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Risk-free interest rate </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:type="locator" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1"/>
<label xml:lang="en-US" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Expected life of options </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Weighted average grant date fair value </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xlink:type="locator" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions"/>
<label xml:lang="en-US" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Total unrecognized compensation cost related to unvested stock option grants </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xlink:to="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options </label>
<loc xlink:href="onvo-20150630.xsd#onvo_WarrantsCashlessExerciseNumber" xlink:type="locator" xlink:label="onvo_WarrantsCashlessExerciseNumber"/>
<label xml:lang="en-US" xlink:label="onvo_WarrantsCashlessExerciseNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Warrants cashless exercise number. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_WarrantsCashlessExerciseNumber" xlink:to="onvo_WarrantsCashlessExerciseNumber_lbl"/>
<loc xlink:href="onvo-20150630.xsd#onvo_CashlessExerciseForIssuanceOfCommonStock" xlink:type="locator" xlink:label="onvo_CashlessExerciseForIssuanceOfCommonStock"/>
<label xml:lang="en-US" xlink:label="onvo_CashlessExerciseForIssuanceOfCommonStock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Cashless exercise for issuance of common stock. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_CashlessExerciseForIssuanceOfCommonStock" xlink:to="onvo_CashlessExerciseForIssuanceOfCommonStock_lbl"/>
<loc xlink:href="onvo-20150630.xsd#onvo_NumberOfWarrantsExercised" xlink:type="locator" xlink:label="onvo_NumberOfWarrantsExercised"/>
<label xml:lang="en-US" xlink:label="onvo_NumberOfWarrantsExercised_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Number of warrants exercised. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_NumberOfWarrantsExercised" xlink:to="onvo_NumberOfWarrantsExercised_lbl"/>
<loc xlink:href="onvo-20150630.xsd#onvo_AmountReversedAgainstOperatingExpense" xlink:type="locator" xlink:label="onvo_AmountReversedAgainstOperatingExpense"/>
<label xml:lang="en-US" xlink:label="onvo_AmountReversedAgainstOperatingExpense_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Amount reversed against operating expense. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_AmountReversedAgainstOperatingExpense" xlink:to="onvo_AmountReversedAgainstOperatingExpense_lbl"/>
<loc xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentAxis" xlink:type="locator" xlink:label="invest_InvestmentAxis"/>
<label xml:lang="en-US" xlink:label="invest_InvestmentAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Investment </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="invest_InvestmentAxis" xlink:to="invest_InvestmentAxis_lbl"/>
<label xml:lang="en-US" xlink:label="invest_InvestmentAxis_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Investment [Axis] </label>
<loc xlink:href="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd#invest_InvestmentDomain" xlink:type="locator" xlink:label="invest_InvestmentDomain"/>
<label xml:lang="en-US" xlink:label="invest_InvestmentDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Investment </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="invest_InvestmentDomain" xlink:to="invest_InvestmentDomain_lbl"/>
<label xml:lang="en-US" xlink:label="invest_InvestmentDomain_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Investment [Domain] </label>
<loc xlink:href="onvo-20150630.xsd#onvo_ConsultationServiceAgreementSeptemberTwoThousandFourteenMember" xlink:type="locator" xlink:label="onvo_ConsultationServiceAgreementSeptemberTwoThousandFourteenMember"/>
<label xml:lang="en-US" xlink:label="onvo_ConsultationServiceAgreementSeptemberTwoThousandFourteenMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Consultation service agreement September two thousand fourteen. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_ConsultationServiceAgreementSeptemberTwoThousandFourteenMember" xlink:to="onvo_ConsultationServiceAgreementSeptemberTwoThousandFourteenMember_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_ConsultationServiceAgreementSeptemberTwoThousandFourteenMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Consultation Service Agreement September 2014 </label>
<label xml:lang="en-US" xlink:label="onvo_ConsultationServiceAgreementSeptemberTwoThousandFourteenMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Consultation Service Agreement September Two Thousand Fourteen [Member] </label>
<loc xlink:href="onvo-20150630.xsd#onvo_ConsultationServiceAgreementNovemberTwoThousandFourteenMember" xlink:type="locator" xlink:label="onvo_ConsultationServiceAgreementNovemberTwoThousandFourteenMember"/>
<label xml:lang="en-US" xlink:label="onvo_ConsultationServiceAgreementNovemberTwoThousandFourteenMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Consultation service agreement November two thousand fourteen. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_ConsultationServiceAgreementNovemberTwoThousandFourteenMember" xlink:to="onvo_ConsultationServiceAgreementNovemberTwoThousandFourteenMember_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_ConsultationServiceAgreementNovemberTwoThousandFourteenMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Consultation Service Agreement November 2014 </label>
<label xml:lang="en-US" xlink:label="onvo_ConsultationServiceAgreementNovemberTwoThousandFourteenMember_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Consultation Service Agreement November Two Thousand Fourteen [Member] </label>
<label xml:lang="en-US" xlink:label="onvo_WarrantsCashlessExerciseNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Number of warrant exercised through cashless </label>
<label xml:lang="en-US" xlink:label="onvo_WarrantsCashlessExerciseNumber_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Warrants Cashless Exercise Number </label>
<label xml:lang="en-US" xlink:label="onvo_CashlessExerciseForIssuanceOfCommonStock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Cashless exercise for issuance of common stock </label>
<label xml:lang="en-US" xlink:label="onvo_CashlessExerciseForIssuanceOfCommonStock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Cashless Exercise For Issuance Of Common Stock </label>
<label xml:lang="en-US" xlink:label="onvo_NumberOfWarrantsExercised_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Number Of Warrants Exercised </label>
<label xml:lang="en-US" xlink:label="onvo_NumberOfWarrantsExercised_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Number Of Warrants Exercised </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:type="locator" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/>
<label xml:lang="en-US" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Warrants exercisable price, per share </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:to="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Class Of Warrant Or Right Exercise Price Of Warrants Or Rights1 </label>
<label xml:lang="en-US" xlink:label="onvo_AmountReversedAgainstOperatingExpense_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Amount reversed against operating expense </label>
<label xml:lang="en-US" xlink:label="onvo_AmountReversedAgainstOperatingExpense_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Amount Reversed Against Operating Expense </label>
<loc xlink:href="onvo-20150630.xsd#onvo_ClassOfWarrantsOrRightExercised" xlink:type="locator" xlink:label="onvo_ClassOfWarrantsOrRightExercised"/>
<label xml:lang="en-US" xlink:label="onvo_ClassOfWarrantsOrRightExercised_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Class of warrant or right exercised. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_ClassOfWarrantsOrRightExercised" xlink:to="onvo_ClassOfWarrantsOrRightExercised_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_ClassOfWarrantsOrRightExercised_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Warrants liability </label>
<label xml:lang="en-US" xlink:label="onvo_ClassOfWarrantsOrRightExercised_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Class Of Warrants Or Right Exercised </label>
<loc xlink:href="onvo-20150630.xsd#onvo_WarrantOrRightExpenseOrRevenueRecognized" xlink:type="locator" xlink:label="onvo_WarrantOrRightExpenseOrRevenueRecognized"/>
<label xml:lang="en-US" xlink:label="onvo_WarrantOrRightExpenseOrRevenueRecognized_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Warrant or right expense or revenue recognized. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_WarrantOrRightExpenseOrRevenueRecognized" xlink:to="onvo_WarrantOrRightExpenseOrRevenueRecognized_lbl"/>
<loc xlink:href="onvo-20150630.xsd#onvo_WarrantEarningPeriodThroughIssuanceOfCommonStock" xlink:type="locator" xlink:label="onvo_WarrantEarningPeriodThroughIssuanceOfCommonStock"/>
<label xml:lang="en-US" xlink:label="onvo_WarrantEarningPeriodThroughIssuanceOfCommonStock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Warrant earning period through issuance of common stock. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_WarrantEarningPeriodThroughIssuanceOfCommonStock" xlink:to="onvo_WarrantEarningPeriodThroughIssuanceOfCommonStock_lbl"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ClassOfWarrantOrRightOutstanding" xlink:type="locator" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding"/>
<label xml:lang="en-US" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Warrants to purchase common stock </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightOutstanding" xlink:to="us-gaap_ClassOfWarrantOrRightOutstanding_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Class Of Warrant Or Right Outstanding </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_EquityFairValueAdjustment" xlink:type="locator" xlink:label="us-gaap_EquityFairValueAdjustment"/>
<label xml:lang="en-US" xlink:label="us-gaap_EquityFairValueAdjustment_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Estimated fair value of warrants </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityFairValueAdjustment" xlink:to="us-gaap_EquityFairValueAdjustment_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_EquityFairValueAdjustment_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Equity Fair Value Adjustment </label>
<label xml:lang="en-US" xlink:label="onvo_WarrantOrRightExpenseOrRevenueRecognized_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Recognized expenses of warrants </label>
<label xml:lang="en-US" xlink:label="onvo_WarrantOrRightExpenseOrRevenueRecognized_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Warrant Or Right Expense Or Revenue Recognized </label>
<label xml:lang="en-US" xlink:label="onvo_WarrantEarningPeriodThroughIssuanceOfCommonStock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Warrants earned, service period </label>
<label xml:lang="en-US" xlink:label="onvo_WarrantEarningPeriodThroughIssuanceOfCommonStock_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Warrant Earning Period Through Issuance Of Common Stock </label>
<loc xlink:href="onvo-20150630.xsd#onvo_CommonStockWarrantsIssued" xlink:type="locator" xlink:label="onvo_CommonStockWarrantsIssued"/>
<label xml:lang="en-US" xlink:label="onvo_CommonStockWarrantsIssued_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Common stock warrants issued. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_CommonStockWarrantsIssued" xlink:to="onvo_CommonStockWarrantsIssued_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_CommonStockWarrantsIssued_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Warrants issued </label>
<label xml:lang="en-US" xlink:label="onvo_CommonStockWarrantsIssued_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Common Stock Warrants Issued </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:type="locator" xlink:label="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
<label xml:lang="en-US" xlink:label="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Share Based Compensation Arrangement By Share Based Payment Award [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award [Line Items] </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Cancelled, Options Outstanding </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period </label>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Granted, Weighted-Average Exercise Price </label>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Exercised, Weighted-Average Exercise Price </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice" xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Cancelled, Weighted-Average Exercise Price </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_CommonStockCapitalSharesReservedForFutureIssuance" xlink:type="locator" xlink:label="us-gaap_CommonStockCapitalSharesReservedForFutureIssuance"/>
<label xml:lang="en-US" xlink:label="us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Common stock reserved for future issuance </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockCapitalSharesReservedForFutureIssuance" xlink:to="us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Common Stock Capital Shares Reserved For Future Issuance </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:type="locator" xlink:label="us-gaap_PreferredStockSharesAuthorized"/>
<label xml:lang="en-US" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Preferred stock, shares authorized </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockSharesAuthorized" xlink:to="us-gaap_PreferredStockSharesAuthorized_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Preferred Stock Shares Authorized </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:type="locator" xlink:label="us-gaap_PreferredStockSharesOutstanding"/>
<label xml:lang="en-US" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Preferred stock, shares outstanding </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockSharesOutstanding" xlink:to="us-gaap_PreferredStockSharesOutstanding_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_PreferredStockSharesOutstanding_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Preferred Stock Shares Outstanding </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LeaseAndRentalExpense" xlink:type="locator" xlink:label="us-gaap_LeaseAndRentalExpense"/>
<label xml:lang="en-US" xlink:label="us-gaap_LeaseAndRentalExpense_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Rent expense </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LeaseAndRentalExpense" xlink:to="us-gaap_LeaseAndRentalExpense_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_LeaseAndRentalExpense_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Lease And Rental Expense </label>
<loc xlink:href="onvo-20150630.xsd#onvo_OperatingLeasesMonthlyBaseRentExpense" xlink:type="locator" xlink:label="onvo_OperatingLeasesMonthlyBaseRentExpense"/>
<label xml:lang="en-US" xlink:label="onvo_OperatingLeasesMonthlyBaseRentExpense_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Operating leases monthly base rent expense. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_OperatingLeasesMonthlyBaseRentExpense" xlink:to="onvo_OperatingLeasesMonthlyBaseRentExpense_lbl"/>
<loc xlink:href="onvo-20150630.xsd#onvo_LeaseTermWithOptionToExtend" xlink:type="locator" xlink:label="onvo_LeaseTermWithOptionToExtend"/>
<label xml:lang="en-US" xlink:label="onvo_LeaseTermWithOptionToExtend_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Lease term with an option to extend the lease at the end of the lease term. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_LeaseTermWithOptionToExtend" xlink:to="onvo_LeaseTermWithOptionToExtend_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_OperatingLeasesMonthlyBaseRentExpense_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Base rent under the lease </label>
<label xml:lang="en-US" xlink:label="onvo_OperatingLeasesMonthlyBaseRentExpense_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Operating Leases Monthly Base Rent Expense </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLeasesOfLesseeContingentRentalsBasisSpreadOnVariableRate" xlink:type="locator" xlink:label="us-gaap_OperatingLeasesOfLesseeContingentRentalsBasisSpreadOnVariableRate"/>
<label xml:lang="en-US" xlink:label="us-gaap_OperatingLeasesOfLesseeContingentRentalsBasisSpreadOnVariableRate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Base rent escalators </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesOfLesseeContingentRentalsBasisSpreadOnVariableRate" xlink:to="us-gaap_OperatingLeasesOfLesseeContingentRentalsBasisSpreadOnVariableRate_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_OperatingLeasesOfLesseeContingentRentalsBasisSpreadOnVariableRate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Operating Leases Of Lessee Contingent Rentals Basis Spread On Variable Rate </label>
<label xml:lang="en-US" xlink:label="onvo_LeaseTermWithOptionToExtend_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Lease term with option to extend </label>
<label xml:lang="en-US" xlink:label="onvo_LeaseTermWithOptionToExtend_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Lease Term With Option To Extend </label>
<loc xlink:href="onvo-20150630.xsd#onvo_IncreasedOfficeSpaceHeadquarters" xlink:type="locator" xlink:label="onvo_IncreasedOfficeSpaceHeadquarters"/>
<label xml:lang="en-US" xlink:label="onvo_IncreasedOfficeSpaceHeadquarters_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Increased office space headquarters. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_IncreasedOfficeSpaceHeadquarters" xlink:to="onvo_IncreasedOfficeSpaceHeadquarters_lbl"/>
<loc xlink:href="onvo-20150630.xsd#onvo_AdditionalLeasedOfficeSpace" xlink:type="locator" xlink:label="onvo_AdditionalLeasedOfficeSpace"/>
<label xml:lang="en-US" xlink:label="onvo_AdditionalLeasedOfficeSpace_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Total additional square footage of leased office space </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_AdditionalLeasedOfficeSpace" xlink:to="onvo_AdditionalLeasedOfficeSpace_lbl"/>
<loc xlink:href="onvo-20150630.xsd#onvo_OfficeSpaceAreaUnderLeaseAgreement" xlink:type="locator" xlink:label="onvo_OfficeSpaceAreaUnderLeaseAgreement"/>
<label xml:lang="en-US" xlink:label="onvo_OfficeSpaceAreaUnderLeaseAgreement_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Office space area under lease agreement. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_OfficeSpaceAreaUnderLeaseAgreement" xlink:to="onvo_OfficeSpaceAreaUnderLeaseAgreement_lbl"/>
<loc xlink:href="onvo-20150630.xsd#onvo_OperatingLeasesMonthlyRentExpense" xlink:type="locator" xlink:label="onvo_OperatingLeasesMonthlyRentExpense"/>
<label xml:lang="en-US" xlink:label="onvo_OperatingLeasesMonthlyRentExpense_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Operating leases monthly rent expense. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_OperatingLeasesMonthlyRentExpense" xlink:to="onvo_OperatingLeasesMonthlyRentExpense_lbl"/>
<loc xlink:href="onvo-20150630.xsd#onvo_AdditionalOfficeSpace" xlink:type="locator" xlink:label="onvo_AdditionalOfficeSpace"/>
<label xml:lang="en-US" xlink:label="onvo_AdditionalOfficeSpace_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Additional office space. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_AdditionalOfficeSpace" xlink:to="onvo_AdditionalOfficeSpace_lbl"/>
<loc xlink:href="onvo-20150630.xsd#onvo_LeaseAmendmentEffectiveDate" xlink:type="locator" xlink:label="onvo_LeaseAmendmentEffectiveDate"/>
<label xml:lang="en-US" xlink:label="onvo_LeaseAmendmentEffectiveDate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Lease amendment effective date. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_LeaseAmendmentEffectiveDate" xlink:to="onvo_LeaseAmendmentEffectiveDate_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_IncreasedOfficeSpaceHeadquarters_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Increased office space size </label>
<label xml:lang="en-US" xlink:label="onvo_IncreasedOfficeSpaceHeadquarters_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Increased Office Space Headquarters </label>
<label xml:lang="en-US" xlink:label="onvo_AdditionalLeasedOfficeSpace_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Area of leased office space </label>
<label xml:lang="en-US" xlink:label="onvo_AdditionalLeasedOfficeSpace_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Additional Leased Office Space </label>
<label xml:lang="en-US" xlink:label="onvo_OfficeSpaceAreaUnderLeaseAgreement_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Total office space under lease agreement </label>
<label xml:lang="en-US" xlink:label="onvo_OfficeSpaceAreaUnderLeaseAgreement_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Office Space Area Under Lease Agreement </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LeaseExpirationDate1" xlink:type="locator" xlink:label="us-gaap_LeaseExpirationDate1"/>
<label xml:lang="en-US" xlink:label="us-gaap_LeaseExpirationDate1_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Lease expiration date </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LeaseExpirationDate1" xlink:to="us-gaap_LeaseExpirationDate1_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_LeaseExpirationDate1_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Lease Expiration Date1 </label>
<label xml:lang="en-US" xlink:label="onvo_OperatingLeasesMonthlyRentExpense_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Rent expense per month </label>
<label xml:lang="en-US" xlink:label="onvo_OperatingLeasesMonthlyRentExpense_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Operating Leases Monthly Rent Expense </label>
<label xml:lang="en-US" xlink:label="onvo_AdditionalOfficeSpace_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Additional office space </label>
<label xml:lang="en-US" xlink:label="onvo_AdditionalOfficeSpace_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Additional Office Space </label>
<label xml:lang="en-US" xlink:label="onvo_LeaseAmendmentEffectiveDate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Expansion premises commencement date </label>
<label xml:lang="en-US" xlink:label="onvo_LeaseAmendmentEffectiveDate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Lease Amendment Effective Date </label>
<loc xlink:href="onvo-20150630.xsd#onvo_IncreaseOfNetAdjustmentLeasedSpace" xlink:type="locator" xlink:label="onvo_IncreaseOfNetAdjustmentLeasedSpace"/>
<label xml:lang="en-US" xlink:label="onvo_IncreaseOfNetAdjustmentLeasedSpace_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Increase of net adjustment leased space. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_IncreaseOfNetAdjustmentLeasedSpace" xlink:to="onvo_IncreaseOfNetAdjustmentLeasedSpace_lbl"/>
<label xml:lang="en-US" xlink:label="onvo_IncreaseOfNetAdjustmentLeasedSpace_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Increase of net adjustment leased space </label>
<label xml:lang="en-US" xlink:label="onvo_IncreaseOfNetAdjustmentLeasedSpace_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Increase Of Net Adjustment Leased Space </label>
<loc xlink:href="onvo-20150630.xsd#onvo_LeaseRentalPeriodStartDate" xlink:type="locator" xlink:label="onvo_LeaseRentalPeriodStartDate"/>
<label xml:lang="en-US" xlink:label="onvo_LeaseRentalPeriodStartDate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Lease rental period start date. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_LeaseRentalPeriodStartDate" xlink:to="onvo_LeaseRentalPeriodStartDate_lbl"/>
<loc xlink:href="onvo-20150630.xsd#onvo_LeaseRentalPeriodEndDate" xlink:type="locator" xlink:label="onvo_LeaseRentalPeriodEndDate"/>
<label xml:lang="en-US" xlink:label="onvo_LeaseRentalPeriodEndDate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation"> Lease rental period end date. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="onvo_LeaseRentalPeriodEndDate" xlink:to="onvo_LeaseRentalPeriodEndDate_lbl"/>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_LesseeLeasingArrangementsOperatingLeasesTermOfContract" xlink:type="locator" xlink:label="us-gaap_LesseeLeasingArrangementsOperatingLeasesTermOfContract"/>
<label xml:lang="en-US" xlink:label="us-gaap_LesseeLeasingArrangementsOperatingLeasesTermOfContract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Lease term </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LesseeLeasingArrangementsOperatingLeasesTermOfContract" xlink:to="us-gaap_LesseeLeasingArrangementsOperatingLeasesTermOfContract_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_LesseeLeasingArrangementsOperatingLeasesTermOfContract_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Lessee Leasing Arrangements Operating Leases Term Of Contract </label>
<label xml:lang="en-US" xlink:label="onvo_LeaseRentalPeriodStartDate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Lease rental period start date </label>
<label xml:lang="en-US" xlink:label="onvo_LeaseRentalPeriodStartDate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Lease Rental Period Start Date </label>
<label xml:lang="en-US" xlink:label="onvo_LeaseRentalPeriodEndDate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Lease rental period end date </label>
<label xml:lang="en-US" xlink:label="onvo_LeaseRentalPeriodEndDate_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Lease Rental Period End Date </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:type="locator" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent"/>
<label xml:lang="en-US" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Fiscal year ended March 31, 2016 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Operating Leases Future Minimum Payments Due Current </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:type="locator" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears"/>
<label xml:lang="en-US" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Fiscal year ended March 31, 2017 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Operating Leases Future Minimum Payments Due In Two Years </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:type="locator" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears"/>
<label xml:lang="en-US" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Fiscal year ended March 31, 2018 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Operating Leases Future Minimum Payments Due In Three Years </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:type="locator" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears"/>
<label xml:lang="en-US" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Fiscal year ended March 31, 2019 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Operating Leases Future Minimum Payments Due In Four Years </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:type="locator" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears"/>
<label xml:lang="en-US" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Fiscal year ended March 31, 2020 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Operating Leases Future Minimum Payments Due In Five Years </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter" xlink:type="locator" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter"/>
<label xml:lang="en-US" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Thereafter </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Operating Leases Future Minimum Payments Due Thereafter </label>
<loc xlink:href="http://xbrl.fasb.org/us-gaap/2015/elts/us-gaap-2015-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:type="locator" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDue"/>
<label xml:lang="en-US" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDue_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:to="us-gaap_OperatingLeasesFutureMinimumPaymentsDue_lbl"/>
<label xml:lang="en-US" xlink:label="us-gaap_OperatingLeasesFutureMinimumPaymentsDue_lbl" xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label"> Operating Leases Future Minimum Payments Due </label>
</labelLink>
</linkbase>

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