SEC Info - ENDRA Life Sciences Inc. - ‘10-K’ for 12/31/21

SEC Info℠

Home

My Interests

Help

Please Sign In

ENDRA Life Sciences Inc. – ‘10-K’ for 12/31/21 – ‘EX-101.PRE’

On: Wednesday, 3/30/22, at 5:01pm ET · For: 12/31/21 · Accession #: 1654954-22-4172 · File #: 1-37969

Previous ‘10-K’: ‘10-K’ on 3/25/21 for 12/31/20 · Next: ‘10-K’ on 3/16/23 for 12/31/22 · Latest: ‘10-K’ on 3/28/24 for 12/31/23 · 26 References:

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

 3/30/22  ENDRA Life Sciences Inc.          10-K       12/31/21   65:5M                                     Blueprint/FA

Annual Report — Form 10-K

Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-K        Annual Report                                       HTML    899K 
 2: EX-4.12     Description of Securities                           HTML     36K 
 3: EX-21.1     Subsidiaries of the Company                         HTML     17K 
 4: EX-23.1     Consent of Expert or Counsel                        HTML     17K 
 5: EX-23.2     Consent of Expert or Counsel                        HTML     16K 
 6: EX-31.1     Certification -- §302 - SOA'02                      HTML     20K 
 7: EX-31.2     Certification -- §302 - SOA'02                      HTML     21K 
 8: EX-32.1     Certification -- §906 - SOA'02                      HTML     18K 
14: R1          Cover                                               HTML     90K 
15: R2          Condensed Consolidated Balance Sheets               HTML    115K 
16: R3          Condensed Balance Sheets (Parenthetical)            HTML     38K 
17: R4          Condensed Statements of Operations                  HTML     80K 
18: R5          Condensed Consolidated Statements of Stockholders   HTML     81K 
                Equity (Unaudited)                                               
19: R6          Condensed Statements of Cash Flows                  HTML    108K 
20: R7          Nature of the Business                              HTML     21K 
21: R8          Summary of Significant Accounting Policies          HTML     52K 
22: R9          Inventory                                           HTML     20K 
23: R10         Fixed Assets                                        HTML     27K 
24: R11         Accounts Payable and Accrued Liabilities            HTML     28K 
25: R12         Bank Loans                                          HTML     22K 
26: R13         Capital Stock                                       HTML     33K 
27: R14         Common Stock Options and Restricted Stock Units     HTML     42K 
                (RSU's)                                                          
28: R15         Common Stock Warrants                               HTML     34K 
29: R16         Commitments and Contingencies                       HTML     38K 
30: R17         Income Taxes                                        HTML     76K 
31: R18         Subsequent Events                                   HTML     24K 
32: R19         Summary of Significant Accounting Policies          HTML     85K 
                (Policies)                                                       
33: R20         Summary of Significant Accounting Policies          HTML     26K 
                (Tables)                                                         
34: R21         Fixed Assets (Tables)                               HTML     26K 
35: R22         Accounts Payable and Accrued Liabilities (Tables)   HTML     28K 
36: R23         Common Stock Options and Restricted Stock Units     HTML     42K 
                (RSU's) (Tables)                                                 
37: R24         Common Stock Warrants (Tables)                      HTML     32K 
38: R25         Commitments and Contingencies (Tables)              HTML     26K 
39: R26         Income Taxes (Tables)                               HTML     77K 
40: R27         Summary of Significant Accounting Policies          HTML     24K 
                (Details)                                                        
41: R28         Summary of Significant Accounting Policies          HTML     43K 
                (Details Narrative)                                              
42: R29         Inventory (Details Narrative)                       HTML     20K 
43: R30         Fixed Assets (Details)                              HTML     28K 
44: R31         Fixed Assets (Details Narrative)                    HTML     20K 
45: R32         Accounts Payable and Accrued Liabilities (Details)  HTML     33K 
46: R33         Bank Loans (Details Narrative)                      HTML     30K 
47: R34         Capital Stock (Details Narrative)                   HTML     94K 
48: R35         Common Stock Options and Restricted Stock Units     HTML     51K 
                (RSUs) (Details)                                                 
49: R36         Common Stock Options and Restricted Stock Units     HTML     41K 
                (RSUs) (Details 1)                                               
50: R37         Common Stock Options and Restricted Stock Units     HTML     44K 
                (RSUs) (Details Narrative)                                       
51: R38         Common Stock Warrants (Details 1)                   HTML     54K 
52: R39         Common Stock Warrants (Details Narrative)           HTML     51K 
53: R40         Commitments and Contingencies (Details)             HTML     36K 
54: R41         Commitments and Contingencies (Details Narrative)   HTML     61K 
55: R42         Income Taxes (Details)                              HTML     26K 
56: R43         Income Taxes (Details 1)                            HTML     46K 
57: R44         Income Taxes (Details 2)                            HTML     59K 
58: R45         Income Taxes (Details 3)                            HTML     38K 
59: R46         Income Taxes (Details Narrative)                    HTML     31K 
60: R47         Subsequent Events (Details Narrative)               HTML     30K 
63: XML         IDEA XML File -- Filing Summary                      XML    109K 
61: XML         XBRL Instance -- ndra_10k_htm                        XML    875K 
62: EXCEL       IDEA Workbook of Financial Reports                  XLSX     72K 
11: EX-101.CAL  XBRL Calculations -- ndra-20211231_cal               XML    109K 
13: EX-101.DEF  XBRL Definitions -- ndra-20211231_def                XML    369K 
10: EX-101.LAB  XBRL Labels -- ndra-20211231_lab                     XML    832K 
12: EX-101.PRE  XBRL Presentations -- ndra-20211231_pre              XML    643K 
 9: EX-101.SCH  XBRL Schema -- ndra-20211231                         XSD    158K 
64: JSON        XBRL Instance as JSON Data -- MetaLinks              283±   378K 
65: ZIP         XBRL Zipped Folder -- 0001654954-22-004172-xbrl      Zip    264K

‘EX-101.PRE’ — XBRL Presentations — ndra-20211231_pre

This Exhibit is an XBRL XML File.

<?xml version="1.0" standalone="yes" encoding="windows-1252"?>

<link:linkbase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">

<link:roleRef roleURI="http://novaworks.com/role/Cover" xlink:href="ndra-20211231.xsd#Cover" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/CondensedConsolidatedBalanceSheets" xlink:href="ndra-20211231.xsd#CondensedConsolidatedBalanceSheets" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/CondensedBalanceSheetsParenthetical" xlink:href="ndra-20211231.xsd#CondensedBalanceSheetsParenthetical" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/CondensedStatementsOfOperations" xlink:href="ndra-20211231.xsd#CondensedStatementsOfOperations" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/CondensedConsolidatedStatementsOfStockholdersEquityUnaudited" xlink:href="ndra-20211231.xsd#CondensedConsolidatedStatementsOfStockholdersEquityUnaudited" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/CondensedStatementsOfCashFlows" xlink:href="ndra-20211231.xsd#CondensedStatementsOfCashFlows" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/NatureOfTheBusiness" xlink:href="ndra-20211231.xsd#NatureOfTheBusiness" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/SummaryOfSignificantAccountingPolicies" xlink:href="ndra-20211231.xsd#SummaryOfSignificantAccountingPolicies" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/Inventory" xlink:href="ndra-20211231.xsd#Inventory" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/FixedAssets" xlink:href="ndra-20211231.xsd#FixedAssets" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/AccountsPayableAndAccruedLiabilities" xlink:href="ndra-20211231.xsd#AccountsPayableAndAccruedLiabilities" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/BankLoans" xlink:href="ndra-20211231.xsd#BankLoans" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/CapitalStock" xlink:href="ndra-20211231.xsd#CapitalStock" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/CommonStockOptionsAndRestrictedStockUnitsRsus" xlink:href="ndra-20211231.xsd#CommonStockOptionsAndRestrictedStockUnitsRsus" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/CommonStockWarrants" xlink:href="ndra-20211231.xsd#CommonStockWarrants" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/CommitmentsAndContingencies" xlink:href="ndra-20211231.xsd#CommitmentsAndContingencies" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/IncomeTaxes" xlink:href="ndra-20211231.xsd#IncomeTaxes" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/SubsequentEvents" xlink:href="ndra-20211231.xsd#SubsequentEvents" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:href="ndra-20211231.xsd#SummaryOfSignificantAccountingPoliciesPolicies" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/SummaryOfSignificantAccountingPoliciesTables" xlink:href="ndra-20211231.xsd#SummaryOfSignificantAccountingPoliciesTables" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/FixedAssetsTables" xlink:href="ndra-20211231.xsd#FixedAssetsTables" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/AccountsPayableAndAccruedLiabilitiesTables" xlink:href="ndra-20211231.xsd#AccountsPayableAndAccruedLiabilitiesTables" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/CommonStockOptionsAndRestrictedStockUnitsRsusTables" xlink:href="ndra-20211231.xsd#CommonStockOptionsAndRestrictedStockUnitsRsusTables" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/CommonStockWarrantsTables" xlink:href="ndra-20211231.xsd#CommonStockWarrantsTables" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/CommitmentsAndContingenciesTables" xlink:href="ndra-20211231.xsd#CommitmentsAndContingenciesTables" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/IncomeTaxesTables" xlink:href="ndra-20211231.xsd#IncomeTaxesTables" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/NatureOfTheBusinessDetailsNarrative" xlink:href="ndra-20211231.xsd#NatureOfTheBusinessDetailsNarrative" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/SummaryOfSignificantAccountingPoliciesDetails" xlink:href="ndra-20211231.xsd#SummaryOfSignificantAccountingPoliciesDetails" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/SummaryOfSignificantAccountingPoliciesDetailsNarrative" xlink:href="ndra-20211231.xsd#SummaryOfSignificantAccountingPoliciesDetailsNarrative" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/InventoryDetailsNarrative" xlink:href="ndra-20211231.xsd#InventoryDetailsNarrative" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/FixedAssetsDetails" xlink:href="ndra-20211231.xsd#FixedAssetsDetails" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/FixedAssetsDetailsNarrative" xlink:href="ndra-20211231.xsd#FixedAssetsDetailsNarrative" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/AccountsPayableAndAccruedLiabilitiesDetails" xlink:href="ndra-20211231.xsd#AccountsPayableAndAccruedLiabilitiesDetails" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/BankLoansDetailsNarrative" xlink:href="ndra-20211231.xsd#BankLoansDetailsNarrative" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/CapitalStockDetailsNarrative" xlink:href="ndra-20211231.xsd#CapitalStockDetailsNarrative" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/CommonStockOptionsAndRestrictedStockUnitsRsusDetails" xlink:href="ndra-20211231.xsd#CommonStockOptionsAndRestrictedStockUnitsRsusDetails" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/CommonStockOptionsAndRestrictedStockUnitsRsusDetails1" xlink:href="ndra-20211231.xsd#CommonStockOptionsAndRestrictedStockUnitsRsusDetails1" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/CommonStockOptionsAndRestrictedStockUnitsRsusDetailsNarrative" xlink:href="ndra-20211231.xsd#CommonStockOptionsAndRestrictedStockUnitsRsusDetailsNarrative" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/CommonStockWarrantsDetails1" xlink:href="ndra-20211231.xsd#CommonStockWarrantsDetails1" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/CommonStockWarrantsDetailsNarrative" xlink:href="ndra-20211231.xsd#CommonStockWarrantsDetailsNarrative" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/CommitmentsAndContingenciesDetails" xlink:href="ndra-20211231.xsd#CommitmentsAndContingenciesDetails" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/CommitmentsAndContingenciesDetailsNarrative" xlink:href="ndra-20211231.xsd#CommitmentsAndContingenciesDetailsNarrative" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/IncomeTaxesDetails" xlink:href="ndra-20211231.xsd#IncomeTaxesDetails" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/IncomeTaxesDetails1" xlink:href="ndra-20211231.xsd#IncomeTaxesDetails1" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/IncomeTaxesDetails2" xlink:href="ndra-20211231.xsd#IncomeTaxesDetails2" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/IncomeTaxesDetails3" xlink:href="ndra-20211231.xsd#IncomeTaxesDetails3" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/IncomeTaxesDetailsNarrative" xlink:href="ndra-20211231.xsd#IncomeTaxesDetailsNarrative" xlink:type="simple"/>

<link:roleRef roleURI="http://novaworks.com/role/SubsequentEventsDetailsNarrative" xlink:href="ndra-20211231.xsd#SubsequentEventsDetailsNarrative" xlink:type="simple"/>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/Cover" xlink:title="00000001 - Document - Cover Page Information">

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_CoverAbstract" xlink:label="loc_deiCoverAbstract"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityRegistrantName" xlink:label="loc_deiEntityRegistrantName"/>

<link:presentationArc order="0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiEntityRegistrantName" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityCentralIndexKey" xlink:label="loc_deiEntityCentralIndexKey"/>

<link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiEntityCentralIndexKey" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentType" xlink:label="loc_deiDocumentType"/>

<link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiDocumentType" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_AmendmentFlag" xlink:label="loc_deiAmendmentFlag"/>

<link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiAmendmentFlag" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityVoluntaryFilers" xlink:label="loc_deiEntityVoluntaryFilers"/>

<link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiEntityVoluntaryFilers" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_CurrentFiscalYearEndDate" xlink:label="loc_deiCurrentFiscalYearEndDate"/>

<link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiCurrentFiscalYearEndDate" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="loc_deiEntityWellKnownSeasonedIssuer"/>

<link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiEntityWellKnownSeasonedIssuer" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntitySmallBusiness" xlink:label="loc_deiEntitySmallBusiness"/>

<link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiEntitySmallBusiness" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityShellCompany" xlink:label="loc_deiEntityShellCompany"/>

<link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiEntityShellCompany" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityEmergingGrowthCompany" xlink:label="loc_deiEntityEmergingGrowthCompany"/>

<link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiEntityEmergingGrowthCompany" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityCurrentReportingStatus" xlink:label="loc_deiEntityCurrentReportingStatus"/>

<link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiEntityCurrentReportingStatus" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentPeriodEndDate" xlink:label="loc_deiDocumentPeriodEndDate"/>

<link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiDocumentPeriodEndDate" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityFilerCategory" xlink:label="loc_deiEntityFilerCategory"/>

<link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiEntityFilerCategory" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="loc_deiDocumentFiscalPeriodFocus"/>

<link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiDocumentFiscalPeriodFocus" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentFiscalYearFocus" xlink:label="loc_deiDocumentFiscalYearFocus"/>

<link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiDocumentFiscalYearFocus" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityExTransitionPeriod" xlink:label="loc_deiEntityExTransitionPeriod"/>

<link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiEntityExTransitionPeriod" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="loc_deiEntityCommonStockSharesOutstanding"/>

<link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiEntityCommonStockSharesOutstanding" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityPublicFloat" xlink:label="loc_deiEntityPublicFloat"/>

<link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiEntityPublicFloat" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentAnnualReport" xlink:label="loc_deiDocumentAnnualReport"/>

<link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiDocumentAnnualReport" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_DocumentTransitionReport" xlink:label="loc_deiDocumentTransitionReport"/>

<link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiDocumentTransitionReport" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityFileNumber" xlink:label="loc_deiEntityFileNumber"/>

<link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiEntityFileNumber" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityIncorporationStateCountryCode" xlink:label="loc_deiEntityIncorporationStateCountryCode"/>

<link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiEntityIncorporationStateCountryCode" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityTaxIdentificationNumber" xlink:label="loc_deiEntityTaxIdentificationNumber"/>

<link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiEntityTaxIdentificationNumber" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityInteractiveDataCurrent" xlink:label="loc_deiEntityInteractiveDataCurrent"/>

<link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiEntityInteractiveDataCurrent" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_IcfrAuditorAttestationFlag" xlink:label="loc_deiIcfrAuditorAttestationFlag"/>

<link:presentationArc order="24" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiIcfrAuditorAttestationFlag" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressAddressLine1" xlink:label="loc_deiEntityAddressAddressLine1"/>

<link:presentationArc order="25" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiEntityAddressAddressLine1" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressAddressLine2" xlink:label="loc_deiEntityAddressAddressLine2"/>

<link:presentationArc order="26" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiEntityAddressAddressLine2" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressCityOrTown" xlink:label="loc_deiEntityAddressCityOrTown"/>

<link:presentationArc order="27" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiEntityAddressCityOrTown" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressStateOrProvince" xlink:label="loc_deiEntityAddressStateOrProvince"/>

<link:presentationArc order="28" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiEntityAddressStateOrProvince" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityAddressPostalZipCode" xlink:label="loc_deiEntityAddressPostalZipCode"/>

<link:presentationArc order="29" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiEntityAddressPostalZipCode" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_CityAreaCode" xlink:label="loc_deiCityAreaCode"/>

<link:presentationArc order="30" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiCityAreaCode" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_LocalPhoneNumber" xlink:label="loc_deiLocalPhoneNumber"/>

<link:presentationArc order="31" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiLocalPhoneNumber" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_Security12bTitle" xlink:label="loc_deiSecurity12bTitle"/>

<link:presentationArc order="32" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiSecurity12bTitle" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_TradingSymbol" xlink:label="loc_deiTradingSymbol"/>

<link:presentationArc order="33" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiTradingSymbol" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_SecurityExchangeName" xlink:label="loc_deiSecurityExchangeName"/>

<link:presentationArc order="34" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiSecurityExchangeName" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_AuditorFirmId" xlink:label="loc_deiAuditorFirmId"/>

<link:presentationArc order="35" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiAuditorFirmId" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_AuditorName" xlink:label="loc_deiAuditorName"/>

<link:presentationArc order="36" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiAuditorName" xlink:type="arc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_AuditorLocation" xlink:label="loc_deiAuditorLocation"/>

<link:presentationArc order="37" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_deiCoverAbstract" xlink:to="loc_deiAuditorLocation" xlink:type="arc"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/CondensedConsolidatedBalanceSheets" xlink:title="000002 - Statement - Condensed Consolidated Balance Sheets">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaapStatementOfFinancialPositionAbstract_201594"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaapStatementTable_c88ef0"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementOfFinancialPositionAbstract_201594" xlink:to="loc_us-gaapStatementTable_c88ef0" order="100"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems_0022e2"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable_c88ef0" xlink:to="loc_us-gaapStatementLineItems_0022e2" order="2000"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaapStatementClassOfStockAxis_7954e4"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaapClassOfStockDomain_9e5dc0"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementClassOfStockAxis_7954e4" xlink:to="loc_us-gaapClassOfStockDomain_9e5dc0" order="20"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SeriesAPreferredStockMember" xlink:label="loc_us-gaapSeriesAPreferredStockMember_7b2824"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockDomain_9e5dc0" xlink:to="loc_us-gaapSeriesAPreferredStockMember_7b2824" order="21"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SeriesBPreferredStockMember" xlink:label="loc_us-gaapSeriesBPreferredStockMember_71905f"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="loc_us-gaapAssetsAbstract_e81c3c"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_0022e2" xlink:to="loc_us-gaapAssetsAbstract_e81c3c" order="1"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="loc_us-gaapAssetsCurrentAbstract_4b640d"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAssetsAbstract_e81c3c" xlink:to="loc_us-gaapAssetsCurrentAbstract_4b640d" order="2"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Cash" xlink:label="loc_us-gaapCash_f3efdf"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAssetsCurrentAbstract_4b640d" xlink:to="loc_us-gaapCash_f3efdf" order="3"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PrepaidExpenseCurrent" xlink:label="loc_us-gaapPrepaidExpenseCurrent_04a615"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryNet" xlink:label="loc_us-gaapInventoryNet_7474f8"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaapAssetsCurrent_adde92"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherAssetsNoncurrentAbstract" xlink:label="loc_us-gaapOtherAssetsNoncurrentAbstract_d14ed9"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaapPropertyPlantAndEquipmentNet_e87550"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOtherAssetsNoncurrentAbstract_d14ed9" xlink:to="loc_us-gaapPropertyPlantAndEquipmentNet_e87550" order="8"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:label="loc_us-gaapOperatingLeaseRightOfUseAsset_937276"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaapOtherAssetsNoncurrent_50632e"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaapAssets_232d87"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="loc_us-gaapLiabilitiesAndStockholdersEquityAbstract_557ada"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="loc_us-gaapLiabilitiesCurrentAbstract_9eaf51"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLiabilitiesAndStockholdersEquityAbstract_557ada" xlink:to="loc_us-gaapLiabilitiesCurrentAbstract_9eaf51" order="13"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent" xlink:label="loc_us-gaapAccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_9530da"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLiabilitiesCurrentAbstract_9eaf51" xlink:to="loc_us-gaapAccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_9530da" order="14"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseLiabilityCurrent" xlink:label="loc_us-gaapOperatingLeaseLiabilityCurrent_afe8ea"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLiabilitiesCurrentAbstract_9eaf51" xlink:to="loc_us-gaapOperatingLeaseLiabilityCurrent_afe8ea" order="15"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaapLiabilitiesCurrent_df5694"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLiabilitiesCurrentAbstract_9eaf51" xlink:to="loc_us-gaapLiabilitiesCurrent_df5694" order="16" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesOtherThanLongTermDebtNoncurrentAbstract" xlink:label="loc_us-gaapLiabilitiesOtherThanLongTermDebtNoncurrentAbstract_bec440"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLiabilitiesCurrentAbstract_9eaf51" xlink:to="loc_us-gaapLiabilitiesOtherThanLongTermDebtNoncurrentAbstract_bec440" order="17"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermLoansPayable" xlink:label="loc_us-gaapLongTermLoansPayable_5b3cac"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapLiabilitiesOtherThanLongTermDebtNoncurrentAbstract_bec440" xlink:to="loc_us-gaapLongTermLoansPayable_5b3cac" order="18"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:label="loc_us-gaapOperatingLeaseLiabilityNoncurrent_c1078f"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaapLongTermDebt_46a59d"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaapLiabilities_2e9df3"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="loc_us-gaapStockholdersEquityAbstract_657c83"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaapCommonStockValue_b487ea"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStockholdersEquityAbstract_657c83" xlink:to="loc_us-gaapCommonStockValue_b487ea" order="23"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="loc_us-gaapAdditionalPaidInCapital_f80d18"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_StockPayable" xlink:label="loc_ndraStockPayable_91fdca"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaapRetainedEarningsAccumulatedDeficit_40a9ff"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaapStockholdersEquity_47c972"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaapLiabilitiesAndStockholdersEquity_fd3257"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="loc_us-gaapPreferredStockValue_3dd862"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/CondensedBalanceSheetsParenthetical" xlink:title="000003 - Statement - Condensed Balance Sheets (Parenthetical)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaapStatementTable_d83485"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementOfFinancialPositionAbstract_70d67f" xlink:to="loc_us-gaapStatementTable_d83485" order="100"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems_a9f3f3"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable_d83485" xlink:to="loc_us-gaapStatementLineItems_a9f3f3" order="2000"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaapClassOfStockDomain_2b0791"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementClassOfStockAxis_709605" xlink:to="loc_us-gaapClassOfStockDomain_2b0791" order="10"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredClassAMember" xlink:label="loc_us-gaapPreferredClassAMember_e9f9be"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockDomain_2b0791" xlink:to="loc_us-gaapPreferredClassAMember_e9f9be" order="11"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredClassBMember" xlink:label="loc_us-gaapPreferredClassBMember_c59ae4"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="loc_us-gaapCommonStockParOrStatedValuePerShare_2951fc"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_a9f3f3" xlink:to="loc_us-gaapCommonStockParOrStatedValuePerShare_2951fc" order="1"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_us-gaapCommonStockSharesAuthorized_6c86ae"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaapCommonStockSharesIssued_b955dc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaapCommonStockSharesOutstanding_ca1fc9"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" xlink:label="loc_us-gaapPreferredStockParOrStatedValuePerShare_dea1e9"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_a9f3f3" xlink:to="loc_us-gaapPreferredStockParOrStatedValuePerShare_dea1e9" order="5"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="loc_us-gaapPreferredStockSharesAuthorized_d01ce6"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockSharesIssued" xlink:label="loc_us-gaapPreferredStockSharesIssued_0525ad"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:label="loc_us-gaapPreferredStockSharesOutstanding_8a81cb"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_a9f3f3" xlink:to="loc_us-gaapPreferredStockSharesOutstanding_8a81cb" order="8"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/CondensedStatementsOfOperations" xlink:title="000004 - Statement - Condensed Statements of Operations">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="loc_us-gaapIncomeStatementAbstract_a86fa0"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingExpensesAbstract" xlink:label="loc_us-gaapOperatingExpensesAbstract_f5130b"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeStatementAbstract_a86fa0" xlink:to="loc_us-gaapOperatingExpensesAbstract_f5130b" order="1"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense" xlink:label="loc_us-gaapResearchAndDevelopmentExpense_822d62"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOperatingExpensesAbstract_f5130b" xlink:to="loc_us-gaapResearchAndDevelopmentExpense_822d62" order="2"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SellingAndMarketingExpense" xlink:label="loc_us-gaapSellingAndMarketingExpense_790911"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="loc_us-gaapGeneralAndAdministrativeExpense_6ca098"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingExpenses" xlink:label="loc_us-gaapOperatingExpenses_ebc454"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaapOperatingIncomeLoss_e6f030"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpenseAbstract" xlink:label="loc_us-gaapOtherNonoperatingIncomeExpenseAbstract_702942"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AmortizationOfDebtDiscountPremium" xlink:label="loc_us-gaapAmortizationOfDebtDiscountPremium_e090b6"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOtherNonoperatingIncomeExpenseAbstract_702942" xlink:to="loc_us-gaapAmortizationOfDebtDiscountPremium_e090b6" order="8" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:label="loc_us-gaapGainsLossesOnExtinguishmentOfDebt_de48f6"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense" xlink:label="loc_us-gaapOtherNonoperatingIncomeExpense_c9401e"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NonoperatingIncomeExpense" xlink:label="loc_us-gaapNonoperatingIncomeExpense_bcf10c"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOtherNonoperatingIncomeExpenseAbstract_702942" xlink:to="loc_us-gaapNonoperatingIncomeExpense_bcf10c" order="11" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_67db7e"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOtherNonoperatingIncomeExpenseAbstract_702942" xlink:to="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_67db7e" order="12" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaapIncomeTaxExpenseBenefit_ce526d"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaapNetIncomeLoss_9868a1"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOtherNonoperatingIncomeExpenseAbstract_702942" xlink:to="loc_us-gaapNetIncomeLoss_9868a1" order="14" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Dividends" xlink:label="loc_us-gaapDividends_9b4265"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOtherNonoperatingIncomeExpenseAbstract_702942" xlink:to="loc_us-gaapDividends_9b4265" order="15" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="loc_us-gaapNetIncomeLossAvailableToCommonStockholdersBasic_0c31e3"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOtherNonoperatingIncomeExpenseAbstract_702942" xlink:to="loc_us-gaapNetIncomeLossAvailableToCommonStockholdersBasic_0c31e3" order="16"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="loc_us-gaapEarningsPerShareBasic_d17c47"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesIssuedBasic" xlink:label="loc_us-gaapWeightedAverageNumberOfSharesIssuedBasic_375386"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOtherNonoperatingIncomeExpenseAbstract_702942" xlink:to="loc_us-gaapWeightedAverageNumberOfSharesIssuedBasic_375386" order="18"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/CondensedConsolidatedStatementsOfStockholdersEquityUnaudited" xlink:title="000005 - Statement - Condensed Consolidated Statements of Stockholders Equity (Unaudited)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="loc_us-gaapStatementOfStockholdersEquityAbstract_502d1c"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaapStatementTable_ec1082"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementOfStockholdersEquityAbstract_502d1c" xlink:to="loc_us-gaapStatementTable_ec1082" order="100"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems_155fe0"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable_ec1082" xlink:to="loc_us-gaapStatementLineItems_155fe0" order="2000"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaapStatementEquityComponentsAxis_d72ba0"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaapEquityComponentDomain_4cc4ba"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementEquityComponentsAxis_d72ba0" xlink:to="loc_us-gaapEquityComponentDomain_4cc4ba" order="20"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaapCommonStockMember_e74438"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapEquityComponentDomain_4cc4ba" xlink:to="loc_us-gaapCommonStockMember_e74438" order="21"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_SeriesBPreferredStocksMember" xlink:label="loc_ndraSeriesBPreferredStocksMember_a553e8"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_PreferredsStockSeriesAMember" xlink:label="loc_ndraPreferredsStockSeriesAMember_b19dec"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_us-gaapAdditionalPaidInCapitalMember_1852bb"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_StockPayableMember" xlink:label="loc_ndraStockPayableMember_fc92fa"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaapRetainedEarningsMember_dbe9e6"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharesIssued" xlink:label="loc_us-gaapSharesIssued_8b6a47"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_155fe0" xlink:to="loc_us-gaapSharesIssued_8b6a47" order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaapStockholdersEquity_14aa71"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_155fe0" xlink:to="loc_us-gaapStockholdersEquity_14aa71" order="2" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_SeriesAConvertiblePreferredStockConvertedToCommonStockShares" xlink:label="loc_ndraSeriesAConvertiblePreferredStockConvertedToCommonStockShares_31b237"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_155fe0" xlink:to="loc_ndraSeriesAConvertiblePreferredStockConvertedToCommonStockShares_31b237" order="3"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_SeriesAConvertiblePreferredStockConvertedToCommonStockAmount" xlink:label="loc_ndraSeriesAConvertiblePreferredStockConvertedToCommonStockAmount_fca2bd"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_155fe0" xlink:to="loc_ndraSeriesAConvertiblePreferredStockConvertedToCommonStockAmount_fca2bd" order="4"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_SeriesBConvertiblePreferredStockConvertedToCommonStockShares" xlink:label="loc_ndraSeriesBConvertiblePreferredStockConvertedToCommonStockShares_0a89ce"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_155fe0" xlink:to="loc_ndraSeriesBConvertiblePreferredStockConvertedToCommonStockShares_0a89ce" order="5"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_SeriesBConvertiblePreferredStockConvertedToCommonStockAmount" xlink:label="loc_ndraSeriesBConvertiblePreferredStockConvertedToCommonStockAmount_0b588e"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_155fe0" xlink:to="loc_ndraSeriesBConvertiblePreferredStockConvertedToCommonStockAmount_0b588e" order="6"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_CommonStockIssuedForCashNetOfFundingCostsShares" xlink:label="loc_ndraCommonStockIssuedForCashNetOfFundingCostsShares_7c7c5e"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_155fe0" xlink:to="loc_ndraCommonStockIssuedForCashNetOfFundingCostsShares_7c7c5e" order="7"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_CommonStockIssuedForCashNetOfFundingCostsAmount" xlink:label="loc_ndraCommonStockIssuedForCashNetOfFundingCostsAmount_cb78a8"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_155fe0" xlink:to="loc_ndraCommonStockIssuedForCashNetOfFundingCostsAmount_cb78a8" order="8"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_CommonStockIssuedForNoteConversionsShares" xlink:label="loc_ndraCommonStockIssuedForNoteConversionsShares_649a00"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_155fe0" xlink:to="loc_ndraCommonStockIssuedForNoteConversionsShares_649a00" order="9"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_CommonStockIssuedForNoteConversionsAmount" xlink:label="loc_ndraCommonStockIssuedForNoteConversionsAmount_5e96e6"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_155fe0" xlink:to="loc_ndraCommonStockIssuedForNoteConversionsAmount_5e96e6" order="10"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_CommonStockIssuedForWarrantExerciseShares" xlink:label="loc_ndraCommonStockIssuedForWarrantExerciseShares_dfa954"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_155fe0" xlink:to="loc_ndraCommonStockIssuedForWarrantExerciseShares_dfa954" order="11"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_CommonStockIssuedForWarrantExerciseAmount" xlink:label="loc_ndraCommonStockIssuedForWarrantExerciseAmount_bd9cf6"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_155fe0" xlink:to="loc_ndraCommonStockIssuedForWarrantExerciseAmount_bd9cf6" order="12"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_CommonStockIssuedForServicesShares" xlink:label="loc_ndraCommonStockIssuedForServicesShares_76e14d"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_155fe0" xlink:to="loc_ndraCommonStockIssuedForServicesShares_76e14d" order="13"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_CommonStockIssuedForServicesAmount" xlink:label="loc_ndraCommonStockIssuedForServicesAmount_0ac40a"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_155fe0" xlink:to="loc_ndraCommonStockIssuedForServicesAmount_0ac40a" order="14"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_CommonStockIssuedForRsuShares" xlink:label="loc_ndraCommonStockIssuedForRsuShares_a39257"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_155fe0" xlink:to="loc_ndraCommonStockIssuedForRsuShares_a39257" order="15"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_CommonStockIssuedForRsuAmount" xlink:label="loc_ndraCommonStockIssuedForRsuAmount_63917b"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_155fe0" xlink:to="loc_ndraCommonStockIssuedForRsuAmount_63917b" order="16"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_FairValueOfVestedStockOptions" xlink:label="loc_ndraFairValueOfVestedStockOptions_cef650"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_155fe0" xlink:to="loc_ndraFairValueOfVestedStockOptions_cef650" order="17"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_FairValueAdjustmentRelatedToWarrantsRepricing" xlink:label="loc_ndraFairValueAdjustmentRelatedToWarrantsRepricing_284712"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_155fe0" xlink:to="loc_ndraFairValueAdjustmentRelatedToWarrantsRepricing_284712" order="18"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DividendsPreferredStock" xlink:label="loc_us-gaapDividendsPreferredStock_644ff3"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaapNetIncomeLoss_9014cb"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_155fe0" xlink:to="loc_us-gaapNetIncomeLoss_9014cb" order="20" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_CommonStockIssuedForOptionExerciseShares" xlink:label="loc_ndraCommonStockIssuedForOptionExerciseShares_7522b5"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_155fe0" xlink:to="loc_ndraCommonStockIssuedForOptionExerciseShares_7522b5" order="21"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_CommonStockIssuedForOptionExerciseAmount" xlink:label="loc_ndraCommonStockIssuedForOptionExerciseAmount_81ea0c"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_155fe0" xlink:to="loc_ndraCommonStockIssuedForOptionExerciseAmount_81ea0c" order="22"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_DeemedDividend" xlink:label="loc_ndraDeemedDividend_95522d"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_155fe0" xlink:to="loc_ndraDeemedDividend_95522d" order="23" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharesIssued" xlink:label="loc_us-gaapSharesIssued_2d28e9"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_155fe0" xlink:to="loc_us-gaapSharesIssued_2d28e9" order="24" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaapStockholdersEquity_b9b65a"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_155fe0" xlink:to="loc_us-gaapStockholdersEquity_b9b65a" order="25" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/CondensedStatementsOfCashFlows" xlink:title="000006 - Statement - Condensed Statements of Cash Flows">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="loc_us-gaapStatementOfCashFlowsAbstract_21b20b"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaapNetCashProvidedByUsedInOperatingActivitiesAbstract_154f46"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementOfCashFlowsAbstract_21b20b" xlink:to="loc_us-gaapNetCashProvidedByUsedInOperatingActivitiesAbstract_154f46" order="1"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaapProfitLoss_4003b4"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivitiesAbstract_154f46" xlink:to="loc_us-gaapProfitLoss_4003b4" order="2" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_a44777"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivitiesAbstract_154f46" xlink:to="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_a44777" order="3"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaapDepreciationDepletionAndAmortization_0f937e"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_a44777" xlink:to="loc_us-gaapDepreciationDepletionAndAmortization_0f937e" order="4"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_FixedAssetsWriteOff" xlink:label="loc_ndraFixedAssetsWriteOff_a91c88"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaapShareBasedCompensation_b085d3"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_a44777" xlink:to="loc_us-gaapAmortizationOfDebtDiscountPremium_c3fb2b" order="7" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense" xlink:label="loc_us-gaapOperatingLeaseRightOfUseAssetAmortizationExpense_b7f783"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_a44777" xlink:to="loc_us-gaapOperatingLeaseRightOfUseAssetAmortizationExpense_b7f783" order="8"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_a44777" xlink:to="loc_us-gaapGainsLossesOnExtinguishmentOfDebt_07db84" order="9" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInOperatingAssetsAbstract" xlink:label="loc_us-gaapIncreaseDecreaseInOperatingAssetsAbstract_f0e5f3"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_a44777" xlink:to="loc_us-gaapIncreaseDecreaseInOperatingAssetsAbstract_f0e5f3" order="10"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidExpense" xlink:label="loc_us-gaapIncreaseDecreaseInPrepaidExpense_e40bce"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncreaseDecreaseInOperatingAssetsAbstract_f0e5f3" xlink:to="loc_us-gaapIncreaseDecreaseInPrepaidExpense_e40bce" order="11" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="loc_us-gaapIncreaseDecreaseInInventories_e28422"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncreaseDecreaseInOperatingAssetsAbstract_f0e5f3" xlink:to="loc_us-gaapIncreaseDecreaseInInventories_e28422" order="12" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:label="loc_us-gaapIncreaseDecreaseInOtherOperatingAssets_365f03"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncreaseDecreaseInOperatingAssetsAbstract_f0e5f3" xlink:to="loc_us-gaapIncreaseDecreaseInOtherOperatingAssets_365f03" order="13" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:label="loc_us-gaapIncreaseDecreaseInAccountsPayableAndAccruedLiabilities_cc19a1"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncreaseDecreaseInOperatingAssetsAbstract_f0e5f3" xlink:to="loc_us-gaapIncreaseDecreaseInAccountsPayableAndAccruedLiabilities_cc19a1" order="14"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_IncreaseDecreaseInLeaseLiability" xlink:label="loc_ndraIncreaseDecreaseInLeaseLiability_fdbf38"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncreaseDecreaseInOperatingAssetsAbstract_f0e5f3" xlink:to="loc_ndraIncreaseDecreaseInLeaseLiability_fdbf38" order="15"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaapNetCashProvidedByUsedInOperatingActivities_46cca3"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncreaseDecreaseInOperatingAssetsAbstract_f0e5f3" xlink:to="loc_us-gaapNetCashProvidedByUsedInOperatingActivities_46cca3" order="16" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="loc_us-gaapNetCashProvidedByUsedInInvestingActivitiesAbstract_cf60d7"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncreaseDecreaseInOperatingAssetsAbstract_f0e5f3" xlink:to="loc_us-gaapNetCashProvidedByUsedInInvestingActivitiesAbstract_cf60d7" order="17"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaapPaymentsToAcquirePropertyPlantAndEquipment_36629e"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivitiesAbstract_cf60d7" xlink:to="loc_us-gaapPaymentsToAcquirePropertyPlantAndEquipment_36629e" order="18" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaapNetCashProvidedByUsedInInvestingActivities_5dea92"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivitiesAbstract_cf60d7" xlink:to="loc_us-gaapNetCashProvidedByUsedInInvestingActivities_5dea92" order="19" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="loc_us-gaapNetCashProvidedByUsedInFinancingActivitiesAbstract_cbed38"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivitiesAbstract_cf60d7" xlink:to="loc_us-gaapNetCashProvidedByUsedInFinancingActivitiesAbstract_cbed38" order="20"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromWarrantExercises" xlink:label="loc_us-gaapProceedsFromWarrantExercises_55f278"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromShortTermDebt" xlink:label="loc_us-gaapProceedsFromShortTermDebt_8a8658"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="loc_us-gaapProceedsFromIssuanceOfCommonStock_d4070e"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaapNetCashProvidedByUsedInFinancingActivities_99005c"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivitiesAbstract_cbed38" xlink:to="loc_us-gaapNetCashProvidedByUsedInFinancingActivities_99005c" order="24" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:label="loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_8de759"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivitiesAbstract_cbed38" xlink:to="loc_us-gaapCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_8de759" order="25" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Cash" xlink:label="loc_us-gaapCash_acddf1"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivitiesAbstract_cbed38" xlink:to="loc_us-gaapCash_acddf1" order="26" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Cash" xlink:label="loc_us-gaapCash_48bd45"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivitiesAbstract_cbed38" xlink:to="loc_us-gaapCash_48bd45" order="27" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:label="loc_us-gaapSupplementalCashFlowInformationAbstract_f63c28"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestPaidNet" xlink:label="loc_us-gaapInterestPaidNet_b18f06"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSupplementalCashFlowInformationAbstract_f63c28" xlink:to="loc_us-gaapInterestPaidNet_b18f06" order="29"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxesPaid" xlink:label="loc_us-gaapIncomeTaxesPaid_8a1c5b"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_SupplementalDisclosuresOfNoncashItemsAbstract" xlink:label="loc_ndraSupplementalDisclosuresOfNoncashItemsAbstract_e8e8d8"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtConversionConvertedInstrumentAmount1" xlink:label="loc_us-gaapDebtConversionConvertedInstrumentAmount1_01e473"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ndraSupplementalDisclosuresOfNoncashItemsAbstract_e8e8d8" xlink:to="loc_us-gaapDebtConversionConvertedInstrumentAmount1_01e473" order="32"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_ExchangeOfBalanceInConvertibleNotesAndAccruedInterestForSeriesPreferredStock" xlink:label="loc_ndraExchangeOfBalanceInConvertibleNotesAndAccruedInterestForSeriesPreferredStock_e2d5b8"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ndraSupplementalDisclosuresOfNoncashItemsAbstract_e8e8d8" xlink:to="loc_ndraExchangeOfBalanceInConvertibleNotesAndAccruedInterestForSeriesPreferredStock_e2d5b8" order="33"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Dividends" xlink:label="loc_us-gaapDividends_02a7e5"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ndraSupplementalDisclosuresOfNoncashItemsAbstract_e8e8d8" xlink:to="loc_us-gaapDividends_02a7e5" order="34" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_ConversionOfSeriesAConvertiblePreferredStock" xlink:label="loc_ndraConversionOfSeriesAConvertiblePreferredStock_57eecc"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ndraSupplementalDisclosuresOfNoncashItemsAbstract_e8e8d8" xlink:to="loc_ndraConversionOfSeriesAConvertiblePreferredStock_57eecc" order="35"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_ConversionOfSeriesBConvertiblePreferredStock" xlink:label="loc_ndraConversionOfSeriesBConvertiblePreferredStock_9f5484"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ndraSupplementalDisclosuresOfNoncashItemsAbstract_e8e8d8" xlink:to="loc_ndraConversionOfSeriesBConvertiblePreferredStock_9f5484" order="36"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_StockIssuedForFinancingCost" xlink:label="loc_ndraStockIssuedForFinancingCost_8e3798"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ndraSupplementalDisclosuresOfNoncashItemsAbstract_e8e8d8" xlink:to="loc_ndraStockIssuedForFinancingCost_8e3798" order="37"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_StockDividendPayable" xlink:label="loc_ndraStockDividendPayable_9d1d33"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinanceLeaseRightOfUseAssetAmortization" xlink:label="loc_us-gaapFinanceLeaseRightOfUseAssetAmortization_f0221e"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_ndraSupplementalDisclosuresOfNoncashItemsAbstract_e8e8d8" xlink:to="loc_us-gaapFinanceLeaseRightOfUseAssetAmortization_f0221e" order="39"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_LeaseLiability" xlink:label="loc_ndraLeaseLiability_d43b2d"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/NatureOfTheBusiness" xlink:title="000007 - Disclosure - Nature of the Business">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaapOrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_068d98"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NatureOfOperations" xlink:label="loc_us-gaapNatureOfOperations_5793b0"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_068d98" xlink:to="loc_us-gaapNatureOfOperations_5793b0" order="1"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/SummaryOfSignificantAccountingPolicies" xlink:title="000008 - Disclosure - Summary of Significant Accounting Policies">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="loc_us-gaapAccountingPoliciesAbstract_5edabb"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SignificantAccountingPoliciesTextBlock" xlink:label="loc_us-gaapSignificantAccountingPoliciesTextBlock_d11764"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_5edabb" xlink:to="loc_us-gaapSignificantAccountingPoliciesTextBlock_d11764" order="1"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/Inventory" xlink:title="000009 - Disclosure - Inventory">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryDisclosureAbstract" xlink:label="loc_us-gaapInventoryDisclosureAbstract_d13b6b"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryDisclosureTextBlock" xlink:label="loc_us-gaapInventoryDisclosureTextBlock_2ffac9"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapInventoryDisclosureAbstract_d13b6b" xlink:to="loc_us-gaapInventoryDisclosureTextBlock_2ffac9" order="1"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/FixedAssets" xlink:title="000010 - Disclosure - Fixed Assets">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="loc_us-gaapPropertyPlantAndEquipmentAbstract_92a3ce"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:label="loc_us-gaapPropertyPlantAndEquipmentDisclosureTextBlock_fe13b4"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPropertyPlantAndEquipmentAbstract_92a3ce" xlink:to="loc_us-gaapPropertyPlantAndEquipmentDisclosureTextBlock_fe13b4" order="1"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/AccountsPayableAndAccruedLiabilities" xlink:title="000011 - Disclosure - Accounts Payable and Accrued Liabilities">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrentAbstract" xlink:label="loc_us-gaapAccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrentAbstract_92d176"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock" xlink:label="loc_us-gaapAccountsPayableAndAccruedLiabilitiesDisclosureTextBlock_328e68"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrentAbstract_92d176" xlink:to="loc_us-gaapAccountsPayableAndAccruedLiabilitiesDisclosureTextBlock_328e68" order="1"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/BankLoans" xlink:title="000012 - Disclosure - Bank Loans">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_QuarterlyFinancialInformationDisclosureAbstract" xlink:label="loc_us-gaapQuarterlyFinancialInformationDisclosureAbstract_e2912d"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShortTermDebtTextBlock" xlink:label="loc_us-gaapShortTermDebtTextBlock_8f1333"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapQuarterlyFinancialInformationDisclosureAbstract_e2912d" xlink:to="loc_us-gaapShortTermDebtTextBlock_8f1333" order="1"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/CapitalStock" xlink:title="000013 - Disclosure - Capital Stock">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:label="loc_us-gaapStockholdersEquityNoteDisclosureTextBlock_8e7232"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStockholdersEquityAbstract_43ab92" xlink:to="loc_us-gaapStockholdersEquityNoteDisclosureTextBlock_8e7232" order="1"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/CommonStockOptionsAndRestrictedStockUnitsRsus" xlink:title="000014 - Disclosure - Common Stock Options and Restricted Stock Units (RSU's)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_7c5196"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_ScheduleOfShareBasedCompensationStockOptionsDisclosureTextBlock" xlink:label="loc_ndraScheduleOfShareBasedCompensationStockOptionsDisclosureTextBlock_fec9ab"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_7c5196" xlink:to="loc_ndraScheduleOfShareBasedCompensationStockOptionsDisclosureTextBlock_fec9ab" order="1"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/CommonStockWarrants" xlink:title="000015 - Disclosure - Common Stock Warrants">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestructuringAndRelatedActivitiesAbstract" xlink:label="loc_us-gaapRestructuringAndRelatedActivitiesAbstract_80e809"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_ScheduleOfShareBasedCompensationWarrantsDisclosureTextBlock" xlink:label="loc_ndraScheduleOfShareBasedCompensationWarrantsDisclosureTextBlock_497bfd"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRestructuringAndRelatedActivitiesAbstract_80e809" xlink:to="loc_ndraScheduleOfShareBasedCompensationWarrantsDisclosureTextBlock_497bfd" order="1"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/CommitmentsAndContingencies" xlink:title="000016 - Disclosure - Commitments and Contingencies">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaapCommitmentsAndContingenciesDisclosureAbstract_bfff9a"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:label="loc_us-gaapCommitmentsAndContingenciesDisclosureTextBlock_6d6b3f"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCommitmentsAndContingenciesDisclosureAbstract_bfff9a" xlink:to="loc_us-gaapCommitmentsAndContingenciesDisclosureTextBlock_6d6b3f" order="1"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/IncomeTaxes" xlink:title="000017 - Disclosure - Income Taxes">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaapIncomeTaxDisclosureAbstract_0c93b0"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxDisclosureTextBlock" xlink:label="loc_us-gaapIncomeTaxDisclosureTextBlock_a672ff"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_0c93b0" xlink:to="loc_us-gaapIncomeTaxDisclosureTextBlock_a672ff" order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/SubsequentEvents" xlink:title="000018 - Disclosure - Subsequent Events">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventsAbstract" xlink:label="loc_us-gaapSubsequentEventsAbstract_0941b6"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventsTextBlock" xlink:label="loc_us-gaapSubsequentEventsTextBlock_22f5c1"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSubsequentEventsAbstract_0941b6" xlink:to="loc_us-gaapSubsequentEventsTextBlock_22f5c1" order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/SummaryOfSignificantAccountingPoliciesPolicies" xlink:title="000019 - Disclosure - Summary of Significant Accounting Policies (Policies)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_UseOfEstimates" xlink:label="loc_us-gaapUseOfEstimates_ba51bc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConsolidationPolicyTextBlock" xlink:label="loc_us-gaapConsolidationPolicyTextBlock_a2a6cb"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_370241" xlink:to="loc_us-gaapConsolidationPolicyTextBlock_a2a6cb" order="2"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:label="loc_us-gaapBasisOfAccountingPolicyPolicyTextBlock_60b255"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_370241" xlink:to="loc_us-gaapBasisOfAccountingPolicyPolicyTextBlock_60b255" order="3"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:label="loc_us-gaapCashAndCashEquivalentsPolicyTextBlock_3260a8"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_370241" xlink:to="loc_us-gaapCashAndCashEquivalentsPolicyTextBlock_3260a8" order="4"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryPolicyTextBlock" xlink:label="loc_us-gaapInventoryPolicyTextBlock_3a1e66"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_370241" xlink:to="loc_us-gaapInventoryPolicyTextBlock_3a1e66" order="5" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:label="loc_us-gaapPropertyPlantAndEquipmentPolicyTextBlock_6f8dae"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_370241" xlink:to="loc_us-gaapPropertyPlantAndEquipmentPolicyTextBlock_6f8dae" order="6"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeLeasesPolicyTextBlock" xlink:label="loc_us-gaapLesseeLeasesPolicyTextBlock_45a13f"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RevenueRecognitionPolicyTextBlock" xlink:label="loc_us-gaapRevenueRecognitionPolicyTextBlock_1a0a3b"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_370241" xlink:to="loc_us-gaapRevenueRecognitionPolicyTextBlock_1a0a3b" order="8"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ResearchAndDevelopmentExpensePolicy" xlink:label="loc_us-gaapResearchAndDevelopmentExpensePolicy_359900"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_370241" xlink:to="loc_us-gaapResearchAndDevelopmentExpensePolicy_359900" order="9"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxPolicyTextBlock" xlink:label="loc_us-gaapIncomeTaxPolicyTextBlock_d1d4d0"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_370241" xlink:to="loc_us-gaapIncomeTaxPolicyTextBlock_d1d4d0" order="10" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerSharePolicyTextBlock" xlink:label="loc_us-gaapEarningsPerSharePolicyTextBlock_c0000e"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_370241" xlink:to="loc_us-gaapEarningsPerSharePolicyTextBlock_c0000e" order="11"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueMeasurementPolicyPolicyTextBlock" xlink:label="loc_us-gaapFairValueMeasurementPolicyPolicyTextBlock_bd5acb"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_370241" xlink:to="loc_us-gaapFairValueMeasurementPolicyPolicyTextBlock_bd5acb" order="12"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:label="loc_us-gaapShareBasedCompensationOptionAndIncentivePlansPolicy_9bb1f8"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_370241" xlink:to="loc_us-gaapShareBasedCompensationOptionAndIncentivePlansPolicy_9bb1f8" order="13"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubstantialDoubtAboutGoingConcernTextBlock" xlink:label="loc_us-gaapSubstantialDoubtAboutGoingConcernTextBlock_2cb496"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_370241" xlink:to="loc_us-gaapSubstantialDoubtAboutGoingConcernTextBlock_2cb496" order="14"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:label="loc_us-gaapNewAccountingPronouncementsPolicyPolicyTextBlock_e5aebf"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_370241" xlink:to="loc_us-gaapNewAccountingPronouncementsPolicyPolicyTextBlock_e5aebf" order="15"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/SummaryOfSignificantAccountingPoliciesTables" xlink:title="000020 - Disclosure - Summary of Significant Accounting Policies (Tables)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock" xlink:label="loc_us-gaapScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_61813e"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_09e517" xlink:to="loc_us-gaapScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_61813e" order="1"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/FixedAssetsTables" xlink:title="000021 - Disclosure - Fixed Assets (Tables)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:label="loc_us-gaapPropertyPlantAndEquipmentTextBlock_88c5ac"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPropertyPlantAndEquipmentAbstract_1ba3bc" xlink:to="loc_us-gaapPropertyPlantAndEquipmentTextBlock_88c5ac" order="1"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/AccountsPayableAndAccruedLiabilitiesTables" xlink:title="000022 - Disclosure - Accounts Payable and Accrued Liabilities (Tables)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrentAbstract" xlink:label="loc_us-gaapAccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrentAbstract_d284ea"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock" xlink:label="loc_us-gaapScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock_11ba65"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrentAbstract_d284ea" xlink:to="loc_us-gaapScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock_11ba65" order="1"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/CommonStockOptionsAndRestrictedStockUnitsRsusTables" xlink:title="000023 - Disclosure - Common Stock Options and Restricted Stock Units (RSU's) (Tables)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" xlink:label="loc_us-gaapScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_ec05f4"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_3c7bd6" xlink:to="loc_us-gaapScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_ec05f4" order="1"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock" xlink:label="loc_us-gaapScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_28a56b"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_3c7bd6" xlink:to="loc_us-gaapScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_28a56b" order="2"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/CommonStockWarrantsTables" xlink:title="000024 - Disclosure - Common Stock Warrants (Tables)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract" xlink:label="loc_us-gaapDerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract_75e52d"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock" xlink:label="loc_us-gaapScheduleOfShareBasedCompensationActivityTableTextBlock_2381f6"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract_75e52d" xlink:to="loc_us-gaapScheduleOfShareBasedCompensationActivityTableTextBlock_2381f6" order="1"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/CommitmentsAndContingenciesTables" xlink:title="000025 - Disclosure - Commitments and Contingencies (Tables)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock" xlink:label="loc_us-gaapLesseeOperatingLeaseLiabilityMaturityTableTextBlock_afde1e"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCommitmentsAndContingenciesDisclosureAbstract_4a9fec" xlink:to="loc_us-gaapLesseeOperatingLeaseLiabilityMaturityTableTextBlock_afde1e" order="1"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/IncomeTaxesTables" xlink:title="000026 - Disclosure - Income Taxes (Tables)">

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_ScheduleOfComponentsOfEarningsBeforeIncomeTaxesTableTextblock" xlink:label="loc_ndraScheduleOfComponentsOfEarningsBeforeIncomeTaxesTableTextblock_01c0b7"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_7d9d11" xlink:to="loc_ndraScheduleOfComponentsOfEarningsBeforeIncomeTaxesTableTextblock_01c0b7" order="1"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:label="loc_us-gaapScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_f4e69a"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_7d9d11" xlink:to="loc_us-gaapScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_f4e69a" order="2"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xlink:label="loc_us-gaapScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_b0fa99"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_7d9d11" xlink:to="loc_us-gaapScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_b0fa99" order="3"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:label="loc_us-gaapScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_96d01a"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_7d9d11" xlink:to="loc_us-gaapScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_96d01a" order="4"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/NatureOfTheBusinessDetailsNarrative" xlink:title="000027 - Disclosure - Nature of the Business (Details Narrative)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2021q4/dei-2021q4.xsd#dei_EntityIncorporationDateOfIncorporation" xlink:label="loc_deiEntityIncorporationDateOfIncorporation_56b4c5"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapOrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_a2589c" xlink:to="loc_deiEntityIncorporationDateOfIncorporation_56b4c5" order="1"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/SummaryOfSignificantAccountingPoliciesDetails" xlink:title="000028 - Disclosure - Summary of Significant Accounting Policies (Details)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaapStatementTable_3f15c0"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems_b66c73"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable_3f15c0" xlink:to="loc_us-gaapStatementLineItems_b66c73" order="2000"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FinancialInstrumentAxis" xlink:label="loc_us-gaapFinancialInstrumentAxis_14c516"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:label="loc_us-gaapTransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_01f04d"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapFinancialInstrumentAxis_14c516" xlink:to="loc_us-gaapTransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_01f04d" order="20"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_OptionsToPurchaseCommonStockMember" xlink:label="loc_ndraOptionsToPurchaseCommonStockMember_8aa771"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapTransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_01f04d" xlink:to="loc_ndraOptionsToPurchaseCommonStockMember_8aa771" order="21"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_WarrantsToPurchaseCommonStockMember" xlink:label="loc_ndraWarrantsToPurchaseCommonStockMember_fd86b9"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapTransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_01f04d" xlink:to="loc_ndraWarrantsToPurchaseCommonStockMember_fd86b9" order="22"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_SharesIssuableUponConversionOfSeriesAConvertiblePreferredStockMember" xlink:label="loc_ndraSharesIssuableUponConversionOfSeriesAConvertiblePreferredStockMember_bbdefa"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapTransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_01f04d" xlink:to="loc_ndraSharesIssuableUponConversionOfSeriesAConvertiblePreferredStockMember_bbdefa" order="23"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="loc_us-gaapAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_42fd08"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_b66c73" xlink:to="loc_us-gaapAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_42fd08" order="1"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/SummaryOfSignificantAccountingPoliciesDetailsNarrative" xlink:title="000029 - Disclosure - Summary of Significant Accounting Policies (Details Narrative)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLeaseLiability" xlink:label="loc_us-gaapOperatingLeaseLiability_e7a711"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_6ebf84" xlink:to="loc_us-gaapOperatingLeaseLiability_e7a711" order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_6ebf84" xlink:to="loc_us-gaapOperatingLeaseRightOfUseAsset_f6bc6e" order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_6ebf84" xlink:to="loc_us-gaapResearchAndDevelopmentExpense_365d65" order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_6ebf84" xlink:to="loc_us-gaapAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_fef303" order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_SharesAvailableForIssuanceIncreasedUnderTheOmnibusPlan" xlink:label="loc_ndraSharesAvailableForIssuanceIncreasedUnderTheOmnibusPlan_e63dc7"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_6ebf84" xlink:to="loc_ndraSharesAvailableForIssuanceIncreasedUnderTheOmnibusPlan_e63dc7" order="5"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockCapitalSharesReservedForFutureIssuance" xlink:label="loc_us-gaapCommonStockCapitalSharesReservedForFutureIssuance_27b595"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_6ebf84" xlink:to="loc_us-gaapCommonStockCapitalSharesReservedForFutureIssuance_27b595" order="6"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_6ebf84" xlink:to="loc_us-gaapCommonStockSharesAuthorized_9540fa" order="7" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDescription" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardDescription_ea4ad1"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_6ebf84" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardDescription_ea4ad1" order="8"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAccountingPoliciesAbstract_6ebf84" xlink:to="loc_us-gaapRetainedEarningsAccumulatedDeficit_0490a0" order="9" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsNet" xlink:label="loc_us-gaapAssetsNet_3ac5dd"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/InventoryDetailsNarrative" xlink:title="000030 - Disclosure - Inventory (Details Narrative)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryNet" xlink:label="loc_us-gaapInventoryNet_bdd282"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapInventoryDisclosureAbstract_5636dd" xlink:to="loc_us-gaapInventoryNet_bdd282" order="1" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/FixedAssetsDetails" xlink:title="000031 - Disclosure - Fixed Assets (Details)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaapPropertyPlantAndEquipmentGross_9f705e"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPropertyPlantAndEquipmentAbstract_ec4d0a" xlink:to="loc_us-gaapPropertyPlantAndEquipmentGross_9f705e" order="1"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DevelopmentInProcess" xlink:label="loc_us-gaapDevelopmentInProcess_1030ad"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaapAccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_86151e"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPropertyPlantAndEquipmentAbstract_ec4d0a" xlink:to="loc_us-gaapAccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_86151e" order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPropertyPlantAndEquipmentAbstract_ec4d0a" xlink:to="loc_us-gaapPropertyPlantAndEquipmentNet_07f50f" order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/FixedAssetsDetailsNarrative" xlink:title="000032 - Disclosure - Fixed Assets (Details Narrative)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Depreciation" xlink:label="loc_us-gaapDepreciation_f5971d"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/AccountsPayableAndAccruedLiabilitiesDetails" xlink:title="000033 - Disclosure - Accounts Payable and Accrued Liabilities (Details)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PayablesAndAccrualsAbstract" xlink:label="loc_us-gaapPayablesAndAccrualsAbstract_5d00ac"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaapAccountsPayableCurrent_b8997f"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPayablesAndAccrualsAbstract_5d00ac" xlink:to="loc_us-gaapAccountsPayableCurrent_b8997f" order="1"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:label="loc_us-gaapEmployeeRelatedLiabilitiesCurrent_71cb39"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccruedBonusesCurrentAndNoncurrent" xlink:label="loc_us-gaapAccruedBonusesCurrentAndNoncurrent_a19b16"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccruedEmployeeBenefitsCurrent" xlink:label="loc_us-gaapAccruedEmployeeBenefitsCurrent_818f4e"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccruedInsuranceCurrentAndNoncurrent" xlink:label="loc_us-gaapAccruedInsuranceCurrentAndNoncurrent_be1be5"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent" xlink:label="loc_us-gaapAccountsPayableAndAccruedLiabilitiesCurrent_c687c1"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/BankLoansDetailsNarrative" xlink:title="000034 - Disclosure - Bank Loans (Details Narrative)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaapStatementTable_a5c4d7"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapQuarterlyFinancialInformationDisclosureAbstract_02455e" xlink:to="loc_us-gaapStatementTable_a5c4d7" order="100"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems_541282"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable_a5c4d7" xlink:to="loc_us-gaapStatementLineItems_541282" order="2000"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AwardDateAxis" xlink:label="loc_us-gaapAwardDateAxis_94b7d3"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AwardDateDomain" xlink:label="loc_us-gaapAwardDateDomain_e229f0"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAwardDateAxis_94b7d3" xlink:to="loc_us-gaapAwardDateDomain_e229f0" order="20"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="loc_us-gaapPlanNameAxis_d4e37c"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaapPlanNameDomain_b7fad4"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPlanNameAxis_d4e37c" xlink:to="loc_us-gaapPlanNameDomain_b7fad4" order="40"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_AprilTwentyTwentyMember" xlink:label="loc_ndraAprilTwentyTwentyMember_8c4d34"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAwardDateDomain_e229f0" xlink:to="loc_ndraAprilTwentyTwentyMember_8c4d34" order="41"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_UsSbaPaycheckProtectionProgramMember" xlink:label="loc_ndraUsSbaPaycheckProtectionProgramMember_71861b"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPlanNameDomain_b7fad4" xlink:to="loc_ndraUsSbaPaycheckProtectionProgramMember_71861b" order="42"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_TDBankLoanMember" xlink:label="loc_ndraTDBankLoanMember_1d8a9e"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentFaceAmount" xlink:label="loc_us-gaapDebtInstrumentFaceAmount_e5b8ec"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_541282" xlink:to="loc_us-gaapDebtInstrumentFaceAmount_e5b8ec" order="1"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_PrincipalAggregateAmount" xlink:label="loc_ndraPrincipalAggregateAmount_c15286"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LineOfCreditFacilityInitiationDate1" xlink:label="loc_us-gaapLineOfCreditFacilityInitiationDate1_4a8c4a"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_InitialTermInterestRate" xlink:label="loc_ndraInitialTermInterestRate_ff9323"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_BankLoanDescription" xlink:label="loc_ndraBankLoanDescription_e84e68"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/CapitalStockDetailsNarrative" xlink:title="000035 - Disclosure - Capital Stock (Details Narrative)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaapStatementTable_03abdb"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStockholdersEquityAbstract_4b45b6" xlink:to="loc_us-gaapStatementTable_03abdb" order="100"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems_07d841"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable_03abdb" xlink:to="loc_us-gaapStatementLineItems_07d841" order="2000"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="loc_us-gaapPlanNameAxis_2335a5"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaapPlanNameDomain_8e9371"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPlanNameAxis_2335a5" xlink:to="loc_us-gaapPlanNameDomain_8e9371" order="10"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaapClassOfStockDomain_7fef70"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementClassOfStockAxis_7701fc" xlink:to="loc_us-gaapClassOfStockDomain_7fef70" order="20"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapClassOfStockDomain_7fef70" xlink:to="loc_us-gaapSeriesAPreferredStockMember_519189" order="21"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_FebrauryTwentyTwentyOneATMAgreementMember" xlink:label="loc_ndraFebrauryTwentyTwentyOneATMAgreementMember_cd1173"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPlanNameDomain_8e9371" xlink:to="loc_ndraFebrauryTwentyTwentyOneATMAgreementMember_cd1173" order="23"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_us-gaapCommonStockParOrStatedValuePerShare_8d25d3" order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_us-gaapCommonStockSharesAuthorized_ebef4f" order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CapitalUnitsAuthorized" xlink:label="loc_us-gaapCapitalUnitsAuthorized_858295"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_us-gaapCommonStockSharesIssued_61af90" order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_us-gaapCommonStockSharesOutstanding_dd6327" order="5" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_StockPayableShare" xlink:label="loc_ndraStockPayableShare_cd8758"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_TotalCommonStockSharesIssued" xlink:label="loc_ndraTotalCommonStockSharesIssued_dcdb09"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_ndraTotalCommonStockSharesIssued_dcdb09" order="7"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_ProceedsFromSalesOfCommonStockSharesReturn" xlink:label="loc_ndraProceedsFromSalesOfCommonStockSharesReturn_b8e354"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_ndraProceedsFromSalesOfCommonStockSharesReturn_b8e354" order="8"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromIssuanceOrSaleOfEquity" xlink:label="loc_us-gaapProceedsFromIssuanceOrSaleOfEquity_43a44f"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_us-gaapProceedsFromIssuanceOrSaleOfEquity_43a44f" order="9"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_CommonStockSharesUponWarratExerciseShares" xlink:label="loc_ndraCommonStockSharesUponWarratExerciseShares_50d734"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_ndraCommonStockSharesUponWarratExerciseShares_50d734" order="10"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_CommonStockSharesUponWarratExerciseAmount" xlink:label="loc_ndraCommonStockSharesUponWarratExerciseAmount_c77c0a"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_ndraCommonStockSharesUponWarratExerciseAmount_c77c0a" order="11"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_CommonStockSharesUponCashlessOptionExercise" xlink:label="loc_ndraCommonStockSharesUponCashlessOptionExercise_271856"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_ndraCommonStockSharesUponCashlessOptionExercise_271856" order="12"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_CommonStockSharesUponCashlessWarrantExercise" xlink:label="loc_ndraCommonStockSharesUponCashlessWarrantExercise_8a970c"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_ndraCommonStockSharesUponCashlessWarrantExercise_8a970c" order="13"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesIssuedForServices" xlink:label="loc_us-gaapStockIssuedDuringPeriodSharesIssuedForServices_9ae9cf"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_us-gaapStockIssuedDuringPeriodSharesIssuedForServices_9ae9cf" order="14"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueIssuedForServices" xlink:label="loc_us-gaapStockIssuedDuringPeriodValueIssuedForServices_bde9e3"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_us-gaapStockIssuedDuringPeriodValueIssuedForServices_bde9e3" order="15"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_CommonStockShareIssuedForRsusShares" xlink:label="loc_ndraCommonStockShareIssuedForRsusShares_59c387"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_ndraCommonStockShareIssuedForRsusShares_59c387" order="16"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_CommonStockShareIssuedForRsusAmount" xlink:label="loc_ndraCommonStockShareIssuedForRsusAmount_657872"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_ndraCommonStockShareIssuedForRsusAmount_657872" order="17"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_NumberOfSharesUnderwrittenOffering" xlink:label="loc_ndraNumberOfSharesUnderwrittenOffering_6908a2"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_ndraNumberOfSharesUnderwrittenOffering_6908a2" order="18"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_NetProceedsUnderwrittenOffering" xlink:label="loc_ndraNetProceedsUnderwrittenOffering_156e4e"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_ndraNetProceedsUnderwrittenOffering_156e4e" order="19"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_ConversionOfPrincipalAndAccruedInterestOnConvertiblePromissoryNotesIssued" xlink:label="loc_ndraConversionOfPrincipalAndAccruedInterestOnConvertiblePromissoryNotesIssued_83b32b"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_ndraConversionOfPrincipalAndAccruedInterestOnConvertiblePromissoryNotesIssued_83b32b" order="20"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ConversionOfStockSharesIssued1" xlink:label="loc_us-gaapConversionOfStockSharesIssued1_e457e1"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_AggregateGrossProceedsFromIssuanceOfCommonStockShares" xlink:label="loc_ndraAggregateGrossProceedsFromIssuanceOfCommonStockShares_244bad"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_ndraAggregateGrossProceedsFromIssuanceOfCommonStockShares_244bad" order="22"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" xlink:label="loc_us-gaapStockIssuedDuringPeriodValueShareBasedCompensation_438523"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_us-gaapStockIssuedDuringPeriodValueShareBasedCompensation_438523" order="23"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_ConversionOfCommonStockIntoPreferredStock" xlink:label="loc_ndraConversionOfCommonStockIntoPreferredStock_9f77af"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_ndraConversionOfCommonStockIntoPreferredStock_9f77af" order="24"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_us-gaapPreferredStockSharesAuthorized_22973c" order="25" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_us-gaapPreferredStockParOrStatedValuePerShare_b0043e" order="26" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_us-gaapPreferredStockSharesOutstanding_193afc" order="27" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_NetProceedsFromSalesOfCommonStock" xlink:label="loc_ndraNetProceedsFromSalesOfCommonStock_ba7956"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_ndraNetProceedsFromSalesOfCommonStock_ba7956" order="28"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_GrossProceedsFromSalesOfCommonStock" xlink:label="loc_ndraGrossProceedsFromSalesOfCommonStock_336627"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_ndraGrossProceedsFromSalesOfCommonStock_336627" order="29"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_us-gaapProceedsFromIssuanceOfCommonStock_ac5c87" order="30" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesOther" xlink:label="loc_us-gaapStockIssuedDuringPeriodSharesOther_89264c"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_us-gaapStockIssuedDuringPeriodSharesOther_89264c" order="31"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_PreferredStockSharesDesignated" xlink:label="loc_ndraPreferredStockSharesDesignated_5bccdf"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_ndraPreferredStockSharesDesignated_5bccdf" order="32"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_us-gaapPreferredStockSharesIssued_ccf53c" order="33" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_PreferredStockSharesUndesignated" xlink:label="loc_ndraPreferredStockSharesUndesignated_19dec0"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_07d841" xlink:to="loc_ndraPreferredStockSharesUndesignated_19dec0" order="34"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/CommonStockOptionsAndRestrictedStockUnitsRsusDetails" xlink:title="000036 - Disclosure - Common Stock Options and Restricted Stock Units (RSUs) (Details)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_aef420"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_be6364" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_aef420" order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_1877bf"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_be6364" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_1877bf" order="2"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_NumberOfOptionsExercised" xlink:label="loc_ndraNumberOfOptionsExercised_8cedec"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_NumberOfOptionsCancelledOrExpired" xlink:label="loc_ndraNumberOfOptionsCancelledOrExpired_e80c12"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_c06119"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_be6364" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_c06119" order="5" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_76c94e"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_be6364" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_76c94e" order="6" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_7b0b41"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_be6364" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_7b0b41" order="7" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_25bdf9"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_be6364" xlink:to="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_25bdf9" order="8"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_5a7521"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_be6364" xlink:to="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_5a7521" order="9"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_ea2841"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_be6364" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice_ea2841" order="10"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice_8b7b79"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_be6364" xlink:to="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice_8b7b79" order="11"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_cd1e07"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_be6364" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_cd1e07" order="12" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_f86a0c"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_be6364" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_f86a0c" order="13" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm1" xlink:label="loc_ndraSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm1_1026c0"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_be6364" xlink:to="loc_ndraSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm1_1026c0" order="14"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedWeightedAverageRemainingContractualTerm" xlink:label="loc_ndraSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedWeightedAverageRemainingContractualTerm_5cd47e"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_be6364" xlink:to="loc_ndraSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedWeightedAverageRemainingContractualTerm_5cd47e" order="15"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:label="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_eece5b"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_be6364" xlink:to="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_eece5b" order="16"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:label="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_522b74"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_be6364" xlink:to="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_522b74" order="17"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/CommonStockOptionsAndRestrictedStockUnitsRsusDetails1" xlink:title="000037 - Disclosure - Common Stock Options and Restricted Stock Units (RSUs) (Details 1)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaapStatementTable_38b407"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems_1dc11d"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable_38b407" xlink:to="loc_us-gaapStatementLineItems_1dc11d" order="2000"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaapAwardTypeAxis_67702a"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_f02652"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAwardTypeAxis_67702a" xlink:to="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_f02652" order="20"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember" xlink:label="loc_us-gaapRestrictedStockUnitsRSUMember_0978bc"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_f02652" xlink:to="loc_us-gaapRestrictedStockUnitsRSUMember_0978bc" order="21"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_402cac"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_1dc11d" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_402cac" order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_dfaa42"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_13a133"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_1dc11d" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_13a133" order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_aa1cce"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsCancelledNumber" xlink:label="loc_ndraShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsCancelledNumber_17998d"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_1dc11d" xlink:to="loc_ndraShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsCancelledNumber_17998d" order="5"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_ea1dd6"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_1dc11d" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_ea1dd6" order="6" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue_ff85c9"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_1dc11d" xlink:to="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue_ff85c9" order="7" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_f116c1"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_1dc11d" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_f116c1" order="8"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue_047966"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_1dc11d" xlink:to="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue_047966" order="9"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue_b61f28"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_1dc11d" xlink:to="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue_b61f28" order="10"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_WeightedAverageGrantDateFairValueCancelledOrExpired" xlink:label="loc_ndraWeightedAverageGrantDateFairValueCancelledOrExpired_2bd68a"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue_b6acdb"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_1dc11d" xlink:to="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue_b6acdb" order="12" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/CommonStockOptionsAndRestrictedStockUnitsRsusDetailsNarrative" xlink:title="000038 - Disclosure - Common Stock Options and Restricted Stock Units (RSUs) (Details Narrative)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaapStatementTable_e73e91"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems_9cc086"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable_e73e91" xlink:to="loc_us-gaapStatementLineItems_9cc086" order="2000"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ProductOrServiceAxis" xlink:label="loc_srtProductOrServiceAxis_da88b2"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ProductsAndServicesDomain" xlink:label="loc_srtProductsAndServicesDomain_d87bd6"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtProductOrServiceAxis_da88b2" xlink:to="loc_srtProductsAndServicesDomain_d87bd6" order="20"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeAxis" xlink:label="loc_srtRangeAxis_2da16b"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember" xlink:label="loc_srtRangeMember_7372a0"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtRangeAxis_2da16b" xlink:to="loc_srtRangeMember_7372a0" order="40"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_BlackScholesMertonOptionPricingModelMember" xlink:label="loc_ndraBlackScholesMertonOptionPricingModelMember_949fbb"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtProductsAndServicesDomain_d87bd6" xlink:to="loc_ndraBlackScholesMertonOptionPricingModelMember_949fbb" order="41"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MinimumMember" xlink:label="loc_srtMinimumMember_b2347c"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtRangeMember_7372a0" xlink:to="loc_srtMinimumMember_b2347c" order="42"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MaximumMember" xlink:label="loc_srtMaximumMember_7ca14c"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_cbec16"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_9cc086" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_cbec16" order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_RestrictedStockUnitsGrantedToManagementVested" xlink:label="loc_ndraRestrictedStockUnitsGrantedToManagementVested_c7cc37"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_RestrictedStockUnitsGrantedEqualQuarterlyInstallments" xlink:label="loc_ndraRestrictedStockUnitsGrantedEqualQuarterlyInstallments_a45747"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_TotalFairValueOfRestrictedStockUnit" xlink:label="loc_ndraTotalFairValueOfRestrictedStockUnit_a9e5ec"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_ClosingPrice" xlink:label="loc_ndraClosingPrice_343093"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_AggregateFairValueOfStockOptionsGranted" xlink:label="loc_ndraAggregateFairValueOfStockOptionsGranted_056343"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsDiscountForPostvestingRestrictions" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsDiscountForPostvestingRestrictions_7139c7"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_9cc086" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsDiscountForPostvestingRestrictions_7139c7" order="7"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_ExpectedDividendYield" xlink:label="loc_ndraExpectedDividendYield_dc57fa"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_ecc47c"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_9cc086" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_ecc47c" order="9"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:label="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_1441d2"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_9cc086" xlink:to="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_1441d2" order="10"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/CommonStockWarrantsDetails1" xlink:title="000039 - Disclosure - Common Stock Warrants (Details 1)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaapStatementTable_0f1ece"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems_6edece"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable_0f1ece" xlink:to="loc_us-gaapStatementLineItems_6edece" order="2000"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaapAwardTypeAxis_0a0270"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_ea7771"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAwardTypeAxis_0a0270" xlink:to="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_ea7771" order="10"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_WarrantsMember" xlink:label="loc_ndraWarrantsMember_d39ba9"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_ea7771" xlink:to="loc_ndraWarrantsMember_d39ba9" order="11"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_b8cb76"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_6edece" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_b8cb76" order="1" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_beed08"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_6edece" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_beed08" order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_41ce79"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_6edece" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_41ce79" order="3" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_0bf16c"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_6edece" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_0bf16c" order="4" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredInPeriod" xlink:label="loc_ndraShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredInPeriod_e5cc96"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_6edece" xlink:to="loc_ndraShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredInPeriod_e5cc96" order="5" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_c25fa9"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_6edece" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_c25fa9" order="6" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisableNumber" xlink:label="loc_ndraShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisableNumber_04185b"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_6edece" xlink:to="loc_ndraShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisableNumber_04185b" order="7" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageExercisePrice" xlink:label="loc_ndraShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageExercisePrice_41288f"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_6edece" xlink:to="loc_ndraShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageExercisePrice_41288f" order="8" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_ShareBasedCompensationArrangementsByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:label="loc_ndraShareBasedCompensationArrangementsByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageExercisePrice_9bb9c9"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_6edece" xlink:to="loc_ndraShareBasedCompensationArrangementsByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageExercisePrice_9bb9c9" order="9" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_ShareBasedCompensationArrangementsByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedInPeriodWeightedAverageExercisePrice" xlink:label="loc_ndraShareBasedCompensationArrangementsByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedInPeriodWeightedAverageExercisePrice_0551ab"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_6edece" xlink:to="loc_ndraShareBasedCompensationArrangementsByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedInPeriodWeightedAverageExercisePrice_0551ab" order="10" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_ShareBasedCompensationArrangementsByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriodWeightedAverageExercisePrice" xlink:label="loc_ndraShareBasedCompensationArrangementsByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriodWeightedAverageExercisePrice_532b85"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_6edece" xlink:to="loc_ndraShareBasedCompensationArrangementsByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriodWeightedAverageExercisePrice_532b85" order="11" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_ShareBasedCompensationArrangementsByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredInPeriodWeightedAverageExercisePrice" xlink:label="loc_ndraShareBasedCompensationArrangementsByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredInPeriodWeightedAverageExercisePrice_7c8a5b"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_6edece" xlink:to="loc_ndraShareBasedCompensationArrangementsByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredInPeriodWeightedAverageExercisePrice_7c8a5b" order="12"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageExercisePrice" xlink:label="loc_ndraShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageExercisePrice_00b5e3"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_6edece" xlink:to="loc_ndraShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageExercisePrice_00b5e3" order="13" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_SharebasedCompensationArrangementBySharebasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageRemainingContractualTermBeginning" xlink:label="loc_ndraSharebasedCompensationArrangementBySharebasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageRemainingContractualTermBeginning_cbae21"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_6edece" xlink:to="loc_ndraSharebasedCompensationArrangementBySharebasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageRemainingContractualTermBeginning_cbae21" order="14" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisableWeightedAverageExercisePrice" xlink:label="loc_ndraShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisableWeightedAverageExercisePrice_ba046a"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_6edece" xlink:to="loc_ndraShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisableWeightedAverageExercisePrice_ba046a" order="15" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_SharebasedCompensationArrangementBySharebasedPaymentAwardNonOptionEquityInstrumentsExercisedWeightedAverageRemainingContractualTerm" xlink:label="loc_ndraSharebasedCompensationArrangementBySharebasedPaymentAwardNonOptionEquityInstrumentsExercisedWeightedAverageRemainingContractualTerm_58c0ef"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_6edece" xlink:to="loc_ndraSharebasedCompensationArrangementBySharebasedPaymentAwardNonOptionEquityInstrumentsExercisedWeightedAverageRemainingContractualTerm_58c0ef" order="16"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_WeightedAverageRemainingContractualTermOutstandingGranted" xlink:label="loc_ndraWeightedAverageRemainingContractualTermOutstandingGranted_706ec1"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_6edece" xlink:to="loc_ndraWeightedAverageRemainingContractualTermOutstandingGranted_706ec1" order="17" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_SharebasedCompensationArrangementBySharebasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageRemainingContractualTermEnding" xlink:label="loc_ndraSharebasedCompensationArrangementBySharebasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageRemainingContractualTermEnding_3ae29c"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_6edece" xlink:to="loc_ndraSharebasedCompensationArrangementBySharebasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageRemainingContractualTermEnding_3ae29c" order="18" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_SharebasedCompensationArrangementBySharebasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageRemainingContractualTermExercisable" xlink:label="loc_ndraSharebasedCompensationArrangementBySharebasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageRemainingContractualTermExercisable_c0e66b"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_6edece" xlink:to="loc_ndraSharebasedCompensationArrangementBySharebasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageRemainingContractualTermExercisable_c0e66b" order="19" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/CommonStockWarrantsDetailsNarrative" xlink:title="000040 - Disclosure - Common Stock Warrants (Details Narrative)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaapStatementTable_0aa139"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract_49a38f" xlink:to="loc_us-gaapStatementTable_0aa139" order="100"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems_92b6c8"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable_0aa139" xlink:to="loc_us-gaapStatementLineItems_92b6c8" order="2000"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsidiarySaleOfStockAxis" xlink:label="loc_us-gaapSubsidiarySaleOfStockAxis_0785fb"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SaleOfStockNameOfTransactionDomain" xlink:label="loc_us-gaapSaleOfStockNameOfTransactionDomain_e491b8"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSubsidiarySaleOfStockAxis_0785fb" xlink:to="loc_us-gaapSaleOfStockNameOfTransactionDomain_e491b8" order="20"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaapAwardTypeAxis_9dd0fc"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2479dd"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAwardTypeAxis_9dd0fc" xlink:to="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2479dd" order="30"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ProductOrServiceAxis" xlink:label="loc_srtProductOrServiceAxis_843f3c"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_ProductsAndServicesDomain" xlink:label="loc_srtProductsAndServicesDomain_ba4f77"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtProductOrServiceAxis_843f3c" xlink:to="loc_srtProductsAndServicesDomain_ba4f77" order="40"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_WarrantsMember" xlink:label="loc_ndraWarrantsMember_ad4ad8"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2479dd" xlink:to="loc_ndraWarrantsMember_ad4ad8" order="41"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_PrivatePlacementsMember" xlink:label="loc_ndraPrivatePlacementsMember_12f997"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSaleOfStockNameOfTransactionDomain_e491b8" xlink:to="loc_ndraPrivatePlacementsMember_12f997" order="42"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_BlackScholesOptionPricingModelMember" xlink:label="loc_ndraBlackScholesOptionPricingModelMember_ea1bb1"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtProductsAndServicesDomain_ba4f77" xlink:to="loc_ndraBlackScholesOptionPricingModelMember_ea1bb1" order="43"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_CommonStockUponTheExerciseOfPrivateWarrants" xlink:label="loc_ndraCommonStockUponTheExerciseOfPrivateWarrants_b7c4ab"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_CommonStockShareIssuedUponPrivateWarrantExercisesShares" xlink:label="loc_ndraCommonStockShareIssuedUponPrivateWarrantExercisesShares_31ee5e"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_CommonStockShareIssuedUponPrivateWarrantExercisesAmount" xlink:label="loc_ndraCommonStockShareIssuedUponPrivateWarrantExercisesAmount_bb0a4e"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_CommonStockSharesUponCashlessWarrantExercise" xlink:label="loc_ndraCommonStockSharesUponCashlessWarrantExercise_3d81b1"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_92b6c8" xlink:to="loc_ndraCommonStockSharesUponCashlessWarrantExercise_3d81b1" order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:label="loc_us-gaapStockIssuedDuringPeriodSharesStockOptionsExercised_1b0a5b"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:label="loc_us-gaapClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_4d09e0"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentMaturityDate" xlink:label="loc_us-gaapDebtInstrumentMaturityDate_69dc7a"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FairValueAdjustmentOfWarrants" xlink:label="loc_us-gaapFairValueAdjustmentOfWarrants_f59fb6"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_ExpectedDividendYield" xlink:label="loc_ndraExpectedDividendYield_72de32"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_92b6c8" xlink:to="loc_ndraExpectedDividendYield_72de32" order="9" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsDiscountForPostvestingRestrictions" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsDiscountForPostvestingRestrictions_69a1ab"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_92b6c8" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsDiscountForPostvestingRestrictions_69a1ab" order="10" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:label="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_572d31"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_92b6c8" xlink:to="loc_us-gaapShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_572d31" order="11" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:label="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_1d20af"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_92b6c8" xlink:to="loc_us-gaapSharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_1d20af" order="12" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/CommitmentsAndContingenciesDetails" xlink:title="000041 - Disclosure - Commitments and Contingencies (Details)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:label="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_a918d1"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCommitmentsAndContingenciesDisclosureAbstract_aabb79" xlink:to="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_a918d1" order="1"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" xlink:label="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDueYearTwo_11cd64"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCommitmentsAndContingenciesDisclosureAbstract_aabb79" xlink:to="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDueYearTwo_11cd64" order="2"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree" xlink:label="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDueYearThree_b458a4"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCommitmentsAndContingenciesDisclosureAbstract_aabb79" xlink:to="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDueYearThree_b458a4" order="3"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour" xlink:label="loc_ndraLesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour_6f2af5"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCommitmentsAndContingenciesDisclosureAbstract_aabb79" xlink:to="loc_ndraLesseeOperatingLeaseLiabilityPaymentsDueAfterYearFour_6f2af5" order="4"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:label="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDue_627a67"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCommitmentsAndContingenciesDisclosureAbstract_aabb79" xlink:to="loc_us-gaapLesseeOperatingLeaseLiabilityPaymentsDue_627a67" order="5" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount" xlink:label="loc_us-gaapLesseeOperatingLeaseLiabilityUndiscountedExcessAmount_fd843b"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCommitmentsAndContingenciesDisclosureAbstract_aabb79" xlink:to="loc_us-gaapLesseeOperatingLeaseLiabilityUndiscountedExcessAmount_fd843b" order="6" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCommitmentsAndContingenciesDisclosureAbstract_aabb79" xlink:to="loc_us-gaapOperatingLeaseLiability_612482" order="7" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCommitmentsAndContingenciesDisclosureAbstract_aabb79" xlink:to="loc_us-gaapOperatingLeaseLiabilityCurrent_e700c6" order="8" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCommitmentsAndContingenciesDisclosureAbstract_aabb79" xlink:to="loc_us-gaapOperatingLeaseLiabilityNoncurrent_bc3867" order="9" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/CommitmentsAndContingenciesDetailsNarrative" xlink:title="000042 - Disclosure - Commitments and Contingencies (Details Narrative)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaapStatementTable_4da05c"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCommitmentsAndContingenciesDisclosureAbstract_dcc036" xlink:to="loc_us-gaapStatementTable_4da05c" order="100"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems_80a5b9"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable_4da05c" xlink:to="loc_us-gaapStatementLineItems_80a5b9" order="2000"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PlanNameAxis" xlink:label="loc_us-gaapPlanNameAxis_751842"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PlanNameDomain" xlink:label="loc_us-gaapPlanNameDomain_2f4f29"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPlanNameAxis_751842" xlink:to="loc_us-gaapPlanNameDomain_2f4f29" order="10"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionAxis" xlink:label="loc_us-gaapRelatedPartyTransactionAxis_379098"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RelatedPartyTransactionDomain" xlink:label="loc_us-gaapRelatedPartyTransactionDomain_3dda69"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionAxis_379098" xlink:to="loc_us-gaapRelatedPartyTransactionDomain_3dda69" order="30"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AwardDateAxis" xlink:label="loc_us-gaapAwardDateAxis_8a26c9"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AwardDateDomain" xlink:label="loc_us-gaapAwardDateDomain_a51315"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAwardDateAxis_8a26c9" xlink:to="loc_us-gaapAwardDateDomain_a51315" order="40"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_EmploymentAgreementsMember" xlink:label="loc_ndraEmploymentAgreementsMember_911f61"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapPlanNameDomain_2f4f29" xlink:to="loc_ndraEmploymentAgreementsMember_911f61" order="41"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_FrancoisMichelonMember" xlink:label="loc_ndraFrancoisMichelonMember_a6988d"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionDomain_3dda69" xlink:to="loc_ndraFrancoisMichelonMember_a6988d" order="42"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_MichaelThorntonMember" xlink:label="loc_ndraMichaelThorntonMember_1705ec"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionDomain_3dda69" xlink:to="loc_ndraMichaelThorntonMember_1705ec" order="43"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_EmploymentgreementsMember" xlink:label="loc_ndraEmploymentgreementsMember_b33927"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_DavidWellsMember" xlink:label="loc_ndraDavidWellsMember_abc3ba"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionDomain_3dda69" xlink:to="loc_ndraDavidWellsMember_abc3ba" order="45"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_MsPestrikovaMember" xlink:label="loc_ndraMsPestrikovaMember_9f5575"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapRelatedPartyTransactionDomain_3dda69" xlink:to="loc_ndraMsPestrikovaMember_9f5575" order="46"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_JanuaryOneTwentyFifteenMember" xlink:label="loc_ndraJanuaryOneTwentyFifteenMember_389440"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapAwardDateDomain_a51315" xlink:to="loc_ndraJanuaryOneTwentyFifteenMember_389440" order="47"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LeaseAndRentalExpense" xlink:label="loc_us-gaapLeaseAndRentalExpense_0ae3d1"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_PercentageofBonusonbasicsalary" xlink:label="loc_ndraPercentageofBonusonbasicsalary_5e613e"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SalariesAndWages" xlink:label="loc_us-gaapSalariesAndWages_0d2c67"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_bd6558"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_80a5b9" xlink:to="loc_us-gaapShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_bd6558" order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_EmploymentAgreementDescription" xlink:label="loc_ndraEmploymentAgreementDescription_ab17c3"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_OptionsGrantedToPurchaseAnAggregateOfCommonStock" xlink:label="loc_ndraOptionsGrantedToPurchaseAnAggregateOfCommonStock_0edcd6"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_OptionsVestedToPurchaseAnAggregateOfCommonStock" xlink:label="loc_ndraOptionsVestedToPurchaseAnAggregateOfCommonStock_894390"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_RentSpace" xlink:label="loc_ndraRentSpace_8ad9ff"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SaleLeasebackTransactionMonthlyRentalPayments" xlink:label="loc_us-gaapSaleLeasebackTransactionMonthlyRentalPayments_3dfa5d"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_RentTerm" xlink:label="loc_ndraRentTerm_6eb2e4"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseDescription" xlink:label="loc_us-gaapLesseeOperatingLeaseDescription_2d9389"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_80a5b9" xlink:to="loc_us-gaapDebtInstrumentMaturityDate_1499f3" order="12" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_WeightedAverageRemainingLeaseTerm" xlink:label="loc_ndraWeightedAverageRemainingLeaseTerm_520730"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LesseeOperatingLeaseDiscountRate" xlink:label="loc_us-gaapLesseeOperatingLeaseDiscountRate_af38e5"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/IncomeTaxesDetails" xlink:title="000043 - Disclosure - Income Taxes (Details)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic" xlink:label="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_31185f"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_90aa8b" xlink:to="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_31185f" order="1"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign" xlink:label="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign_cc1bf4"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_90aa8b" xlink:to="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign_cc1bf4" order="2"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_530f26"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_90aa8b" xlink:to="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_530f26" order="3"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/IncomeTaxesDetails1" xlink:title="000044 - Disclosure - Income Taxes (Details 1)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CurrentFederalStateAndLocalTaxExpenseBenefitAbstract" xlink:label="loc_us-gaapCurrentFederalStateAndLocalTaxExpenseBenefitAbstract_3b48ec"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_23c167" xlink:to="loc_us-gaapCurrentFederalStateAndLocalTaxExpenseBenefitAbstract_3b48ec" order="1"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CurrentFederalTaxExpenseBenefit" xlink:label="loc_us-gaapCurrentFederalTaxExpenseBenefit_e078c1"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCurrentFederalStateAndLocalTaxExpenseBenefitAbstract_3b48ec" xlink:to="loc_us-gaapCurrentFederalTaxExpenseBenefit_e078c1" order="2" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CurrentStateAndLocalTaxExpenseBenefit" xlink:label="loc_us-gaapCurrentStateAndLocalTaxExpenseBenefit_446449"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCurrentFederalStateAndLocalTaxExpenseBenefitAbstract_3b48ec" xlink:to="loc_us-gaapCurrentStateAndLocalTaxExpenseBenefit_446449" order="3" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CurrentForeignTaxExpenseBenefit" xlink:label="loc_us-gaapCurrentForeignTaxExpenseBenefit_c26174"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCurrentFederalStateAndLocalTaxExpenseBenefitAbstract_3b48ec" xlink:to="loc_us-gaapCurrentForeignTaxExpenseBenefit_c26174" order="4" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit" xlink:label="loc_us-gaapCurrentIncomeTaxExpenseBenefit_3a80a5"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredFederalStateAndLocalTaxExpenseBenefitAbstract" xlink:label="loc_us-gaapDeferredFederalStateAndLocalTaxExpenseBenefitAbstract_234947"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapCurrentFederalStateAndLocalTaxExpenseBenefitAbstract_3b48ec" xlink:to="loc_us-gaapDeferredFederalStateAndLocalTaxExpenseBenefitAbstract_234947" order="6"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredFederalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaapDeferredFederalIncomeTaxExpenseBenefit_3deada"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDeferredFederalStateAndLocalTaxExpenseBenefitAbstract_234947" xlink:to="loc_us-gaapDeferredFederalIncomeTaxExpenseBenefit_3deada" order="7"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaapDeferredStateAndLocalIncomeTaxExpenseBenefit_56ee07"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredForeignIncomeTaxExpenseBenefit" xlink:label="loc_us-gaapDeferredForeignIncomeTaxExpenseBenefit_a218df"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaapDeferredIncomeTaxExpenseBenefit_dfe31b"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapDeferredFederalStateAndLocalTaxExpenseBenefitAbstract_234947" xlink:to="loc_us-gaapIncomeTaxExpenseBenefit_f29403" order="11" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/IncomeTaxesDetails2" xlink:title="000045 - Disclosure - Income Taxes (Details 2)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" xlink:label="loc_us-gaapIncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_459ee6"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_6514f3" xlink:to="loc_us-gaapIncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_459ee6" order="1"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_EffectiveIncomeTaxRateReconciliationPermanentDifferencesAmount" xlink:label="loc_ndraEffectiveIncomeTaxRateReconciliationPermanentDifferencesAmount_03adbb"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_6514f3" xlink:to="loc_ndraEffectiveIncomeTaxRateReconciliationPermanentDifferencesAmount_03adbb" order="2"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_EffectiveIncomeTaxRateReconciliationStateIncomeTaxNetOfFederalBenefitAmount" xlink:label="loc_ndraEffectiveIncomeTaxRateReconciliationStateIncomeTaxNetOfFederalBenefitAmount_afcb74"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_6514f3" xlink:to="loc_ndraEffectiveIncomeTaxRateReconciliationStateIncomeTaxNetOfFederalBenefitAmount_afcb74" order="3"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_EffectiveIncomeTaxRateReconciliationStateRateChangeFederalImpactAmount" xlink:label="loc_ndraEffectiveIncomeTaxRateReconciliationStateRateChangeFederalImpactAmount_84ca91"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_6514f3" xlink:to="loc_ndraEffectiveIncomeTaxRateReconciliationStateRateChangeFederalImpactAmount_84ca91" order="4"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes" xlink:label="loc_us-gaapIncomeTaxReconciliationStateAndLocalIncomeTaxes_0000b9"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_6514f3" xlink:to="loc_us-gaapIncomeTaxReconciliationStateAndLocalIncomeTaxes_0000b9" order="5"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential" xlink:label="loc_us-gaapIncomeTaxReconciliationForeignIncomeTaxRateDifferential_0c13e9"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_6514f3" xlink:to="loc_us-gaapIncomeTaxReconciliationForeignIncomeTaxRateDifferential_0c13e9" order="6"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaapIncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance_703467"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_6514f3" xlink:to="loc_us-gaapIncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance_703467" order="7"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes" xlink:label="loc_us-gaapIncomeTaxReconciliationPriorYearIncomeTaxes_2223af"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_6514f3" xlink:to="loc_us-gaapIncomeTaxReconciliationPriorYearIncomeTaxes_2223af" order="8"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_6514f3" xlink:to="loc_us-gaapIncomeTaxExpenseBenefit_55fbfb" order="9" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:label="loc_us-gaapEffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_54e5c5"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_6514f3" xlink:to="loc_us-gaapEffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_54e5c5" order="10" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_EffectiveincometaxratereconciliationpermanentDifferencesPercentage" xlink:label="loc_ndraEffectiveincometaxratereconciliationpermanentDifferencesPercentage_dfbba5"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_6514f3" xlink:to="loc_ndraEffectiveincometaxratereconciliationpermanentDifferencesPercentage_dfbba5" order="11" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_EffectiveIncomeTaxRateReconciliationStateIncomeTaxNetOfFederalBenefitPercentage" xlink:label="loc_ndraEffectiveIncomeTaxRateReconciliationStateIncomeTaxNetOfFederalBenefitPercentage_0f49ab"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_6514f3" xlink:to="loc_ndraEffectiveIncomeTaxRateReconciliationStateIncomeTaxNetOfFederalBenefitPercentage_0f49ab" order="12" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_EffectiveIncomeTaxRateReconciliationStateRateChangeFederalImpactPercentage" xlink:label="loc_ndraEffectiveIncomeTaxRateReconciliationStateRateChangeFederalImpactPercentage_fbe3ad"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_6514f3" xlink:to="loc_ndraEffectiveIncomeTaxRateReconciliationStateRateChangeFederalImpactPercentage_fbe3ad" order="13" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes" xlink:label="loc_us-gaapEffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_c6df00"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_6514f3" xlink:to="loc_us-gaapEffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_c6df00" order="14" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential" xlink:label="loc_us-gaapEffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential_d3a947"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_6514f3" xlink:to="loc_us-gaapEffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential_d3a947" order="15" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaapEffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_81a15b"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_6514f3" xlink:to="loc_us-gaapEffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_81a15b" order="16" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes" xlink:label="loc_us-gaapEffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes_09750d"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_6514f3" xlink:to="loc_us-gaapEffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes_09750d" order="17" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations" xlink:label="loc_us-gaapEffectiveIncomeTaxRateContinuingOperations_c177e0"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_6514f3" xlink:to="loc_us-gaapEffectiveIncomeTaxRateContinuingOperations_c177e0" order="18" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/IncomeTaxesDetails3" xlink:title="000046 - Disclosure - Income Taxes (Details 3)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" xlink:label="loc_us-gaapDeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_988cd6"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_709ddf" xlink:to="loc_us-gaapDeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_988cd6" order="1" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_DeferredTaxAssetsDepreciation" xlink:label="loc_ndraDeferredTaxAssetsDepreciation_471f89"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther" xlink:label="loc_us-gaapDeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther_5ebbf4"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_709ddf" xlink:to="loc_us-gaapDeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsOther_5ebbf4" order="3"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_DeferredTaxRightOfUseAsste" xlink:label="loc_ndraDeferredTaxRightOfUseAsste_92606a"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_DeferredTaxRightOfUseLiability" xlink:label="loc_ndraDeferredTaxRightOfUseLiability_fc4554"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic" xlink:label="loc_us-gaapDeferredTaxAssetsOperatingLossCarryforwardsDomestic_07eb19"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_709ddf" xlink:to="loc_us-gaapDeferredTaxAssetsOperatingLossCarryforwardsDomestic_07eb19" order="6"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsForeign" xlink:label="loc_us-gaapDeferredTaxAssetsOperatingLossCarryforwardsForeign_c9a528"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_709ddf" xlink:to="loc_us-gaapDeferredTaxAssetsOperatingLossCarryforwardsForeign_c9a528" order="7"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsGross" xlink:label="loc_us-gaapDeferredTaxAssetsGross_f2bb67"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaapDeferredTaxAssetsValuationAllowance_b876b0"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredTaxAssetsNet" xlink:label="loc_us-gaapDeferredTaxAssetsNet_670f81"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxDisclosureAbstract_709ddf" xlink:to="loc_us-gaapDeferredTaxAssetsNet_670f81" order="10" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/IncomeTaxesDetailsNarrative" xlink:title="000047 - Disclosure - Income Taxes (Details Narrative)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaapStatementTable_4d169c"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems_2663a9"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable_4d169c" xlink:to="loc_us-gaapStatementLineItems_2663a9" order="2000"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxAuthorityAxis" xlink:label="loc_us-gaapIncomeTaxAuthorityAxis_e2160a"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxAuthorityDomain" xlink:label="loc_us-gaapIncomeTaxAuthorityDomain_50c98e"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxAuthorityAxis_e2160a" xlink:to="loc_us-gaapIncomeTaxAuthorityDomain_50c98e" order="20"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DomesticCountryMember" xlink:label="loc_us-gaapDomesticCountryMember_393d80"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapIncomeTaxAuthorityDomain_50c98e" xlink:to="loc_us-gaapDomesticCountryMember_393d80" order="21"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_CanadaFranceGermanyNetherlandsAndUKMember" xlink:label="loc_ndraCanadaFranceGermanyNetherlandsAndUKMember_a8ac4e"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_GlobalIntangibleLowTaxedIncomeMember" xlink:label="loc_ndraGlobalIntangibleLowTaxedIncomeMember_8ce0bf"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_NetOperatingLossCarryforwardBegainToExpire" xlink:label="loc_ndraNetOperatingLossCarryforwardBegainToExpire_ece791"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_2663a9" xlink:to="loc_ndraNetOperatingLossCarryforwardBegainToExpire_ece791" order="1"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingLossCarryforwards" xlink:label="loc_us-gaapOperatingLossCarryforwards_e00c5d"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_2663a9" xlink:to="loc_us-gaapOperatingLossCarryforwards_e00c5d" order="2"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_OperatingLossCarryforwardsExpirationYear" xlink:label="loc_ndraOperatingLossCarryforwardsExpirationYear_06631a"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_2663a9" xlink:to="loc_ndraOperatingLossCarryforwardsExpirationYear_06631a" order="3"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IndefinitelivedIntangibleAssetsAcquired" xlink:label="loc_us-gaapIndefinitelivedIntangibleAssetsAcquired_e46509"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_2663a9" xlink:to="loc_us-gaapIndefinitelivedIntangibleAssetsAcquired_e46509" order="4"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_2663a9" xlink:to="loc_us-gaapEffectiveIncomeTaxRateContinuingOperations_d2f094" order="5" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>

</link:presentationLink>

<link:presentationLink xlink:type="extended" xlink:role="http://novaworks.com/role/SubsequentEventsDetailsNarrative" xlink:title="000048 - Disclosure - Subsequent Events (Details Narrative)">

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaapStatementTable_43ef2b"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSubsequentEventsAbstract_4d9c14" xlink:to="loc_us-gaapStatementTable_43ef2b" order="100"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaapStatementLineItems_3c5e73"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementTable_43ef2b" xlink:to="loc_us-gaapStatementLineItems_3c5e73" order="2000"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaapSubsequentEventTypeAxis_3fafd2"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaapSubsequentEventTypeDomain_96f304"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSubsequentEventTypeAxis_3fafd2" xlink:to="loc_us-gaapSubsequentEventTypeDomain_96f304" order="20"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeAxis" xlink:label="loc_srtRangeAxis_6d1908"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_RangeMember" xlink:label="loc_srtRangeMember_7787f9"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtRangeAxis_6d1908" xlink:to="loc_srtRangeMember_7787f9" order="30"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaapSubsequentEventMember_b2c462"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapSubsequentEventTypeDomain_96f304" xlink:to="loc_us-gaapSubsequentEventMember_b2c462" order="31"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd#srt_MinimumMember" xlink:label="loc_srtMinimumMember_81dab1"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srtRangeMember_7787f9" xlink:to="loc_srtMinimumMember_81dab1" order="32" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>

<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1" xlink:label="loc_us-gaapDebtInstrumentConvertibleThresholdConsecutiveTradingDays1_595242"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_3c5e73" xlink:to="loc_us-gaapDebtInstrumentConvertibleThresholdConsecutiveTradingDays1_595242" order="1"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_3c5e73" xlink:to="loc_us-gaapCommonStockSharesIssued_b7e8ce" order="2" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>

<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaapStatementLineItems_3c5e73" xlink:to="loc_us-gaapProceedsFromIssuanceOfCommonStock_de04b2" order="3" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_BidPrice" xlink:label="loc_ndraBidPrice_e40c0d"/>

<link:loc xlink:type="locator" xlink:href="ndra-20211231.xsd#ndra_MinimumBidPriceRequirement" xlink:label="loc_ndraMinimumBidPriceRequirement_184a3c"/>

</link:presentationLink>

</link:linkbase>

6 Subsequent Filings that Reference this Filing

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

 4/19/24  ENDRA Life Sciences Inc.          S-1                    9:1.1M                                   Blueprint/FA
 3/28/24  ENDRA Life Sciences Inc.          10-K       12/31/23   67:4.8M                                   Blueprint/FA
 4/19/23  ENDRA Life Sciences Inc.          S-1/A                  1:357K                                   Blueprint/FA
 4/18/23  ENDRA Life Sciences Inc.          S-1/A                  5:515K                                   Blueprint/FA
 3/30/23  ENDRA Life Sciences Inc.          S-1                    6:959K                                   Blueprint/FA
 3/16/23  ENDRA Life Sciences Inc.          10-K       12/31/22   60:4.2M                                   Blueprint/FA

20 Previous Filings that this Filing References

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

 3/25/21  ENDRA Life Sciences Inc.          10-K       12/31/20   59:3.5M                                   Blueprint/FA
12/21/20  ENDRA Life Sciences Inc.          8-K:1,7,9  12/16/20    3:65K                                    Blueprint/FA
 8/14/20  ENDRA Life Sciences Inc.          10-Q        6/30/20   52:2.8M                                   Blueprint/FA
 5/14/20  ENDRA Life Sciences Inc.          10-Q        3/31/20   50:3M                                     Blueprint/FA
 1/15/20  ENDRA Life Sciences Inc.          8-K:1,7,9   1/13/20    3:76K                                    Blueprint/FA
12/27/19  ENDRA Life Sciences Inc.          8-K:5,9    12/27/19    3:57K                                    Blueprint/FA
12/26/19  ENDRA Life Sciences Inc.          8-K:1,3,5,912/19/19    4:390K                                   Blueprint/FA
12/11/19  ENDRA Life Sciences Inc.          8-K:1,3,7,912/05/19    6:503K                                   Blueprint/FA
 8/08/19  ENDRA Life Sciences Inc.          10-Q        6/30/19   49:2.1M                                   Blueprint/FA
 7/29/19  ENDRA Life Sciences Inc.          8-K:1,2,3,7 7/26/19    7:701K                                   Blueprint/FA
 5/14/19  ENDRA Life Sciences Inc.          10-Q        3/31/19   50:1.9M                                   Blueprint/FA
11/05/18  ENDRA Life Sciences Inc.          10-Q        9/30/18   47:2.2M                                   Blueprint/FA
 5/15/18  ENDRA Life Sciences Inc.          10-Q        3/31/18   44:1.7M                                   Blueprint/FA
 5/10/18  ENDRA Life Sciences Inc.          DEF 14A     6/12/18    1:985K                                   EdgarAgents LLC/FA
 3/20/18  ENDRA Life Sciences Inc.          10-K       12/31/17   54:3.2M                                   Blueprint/FA
 2/05/18  ENDRA Life Sciences Inc.          8-K:1,7,9   1/30/18    3:74K                                    Blueprint/FA
 5/12/17  ENDRA Life Sciences Inc.          8-K:5,9     5/08/17    6:209K                                   Blueprint/FA
 5/03/17  ENDRA Life Sciences Inc.          S-1/A                  6:721K                                   Blueprint/FA
12/06/16  ENDRA Life Sciences Inc.          S-1/A                 12:2.9M                                   Blueprint/FA
11/21/16  ENDRA Life Sciences Inc.          S-1        11/18/16   29:4.1M                                   Blueprint/FA

↑Top

Filing Submission 0001654954-22-004172 – Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)

ENDRA Life Sciences Inc. – ‘10-K’ for 12/31/21 – ‘EX-101.PRE’

On: Wednesday, 3/30/22, at 5:01pm ET · For: 12/31/21 · Accession #: 1654954-22-4172 · File #: 1-37969

Annual Report — Form 10-KFiling Table of Contents

‘EX-101.PRE’ — XBRL Presentations — ndra-20211231_pre

This Exhibit is an XBRL XML File.

6 Subsequent Filings that Reference this Filing

20 Previous Filings that this Filing References

Annual Report — Form 10-K

Filing Table of Contents