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        <TypeOfAssistanceTxt>Conference Attendance, Lodging &amp; Travel</TypeOfAssistanceTxt>
        <RegionTxt>East Asia and the Pacific</RegionTxt>
        <RecipientCnt>3</RecipientCnt>
        <CashGrantAmt>3000</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CASH PAYMENT</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>Surgical Outreach, Conference Attendance, Lodging &amp; Travel</TypeOfAssistanceTxt>
        <RegionTxt>South America</RegionTxt>
        <RecipientCnt>74</RecipientCnt>
        <CashGrantAmt>117648</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CASH PAYMENT</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>Surgical Outreach</TypeOfAssistanceTxt>
        <RegionTxt>South Asia</RegionTxt>
        <RecipientCnt>5</RecipientCnt>
        <CashGrantAmt>13567</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CASH PAYMENT</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>Surgical Outreach</TypeOfAssistanceTxt>
        <RegionTxt>Sub-Saharan Africa</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>2500</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CASH PAYMENT</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>Research &amp; educational Grants, Conference Attendance, Lodging &amp; Travel</TypeOfAssistanceTxt>
        <RegionTxt>North America (Canada &amp; Mexico only)</RegionTxt>
        <RecipientCnt>24</RecipientCnt>
        <CashGrantAmt>42134</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CASH PAYMENT</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>Conference Attendance, Lodging &amp; Travel</TypeOfAssistanceTxt>
        <RegionTxt>Central America and the Caribbean</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>1159</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CASH PAYMENT</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <ForeignIndividualsGrantsGrp>
        <TypeOfAssistanceTxt>Surgical Outreach</TypeOfAssistanceTxt>
        <RegionTxt>Europe (Including Iceland and Greenland)</RegionTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>20000</CashGrantAmt>
        <MannerOfCashDisbursementTxt>CASH PAYMENT</MannerOfCashDisbursementTxt>
      </ForeignIndividualsGrantsGrp>
      <TransferToForeignCorpInd>false</TransferToForeignCorpInd>
      <InterestInForeignTrustInd>false</InterestInForeignTrustInd>
      <ForeignCorpOwnershipInd>false</ForeignCorpOwnershipInd>
      <PassiveForeignInvestmestCoInd>false</PassiveForeignInvestmestCoInd>
      <ForeignPartnershipInd>false</ForeignPartnershipInd>
      <BoycottCountriesInd>false</BoycottCountriesInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule F, Part I, Line 2 Procedures for monitoring use of grant funds</FormAndLineReferenceDesc>
        <ExplanationTxt>TSF REQUIRES INTERIM REPORTING FROM ALL AWARDEES, INCLUDING THOSE FROM OUTSIDE THE UNITED STATES. AT INTERVALS DURING THE AWARD TERM, AWARDEES MUST SUBMIT A WRITTEN UPDATE ON RESEARCH OR FELLOWSHIP PROGRESS, AIMS ACHIEVED OR IN PROCESS, OBSTACLES ENCOUNTERED, AND A BUDGET UPDATE THAT DESCRIBES USE OF AWARDED FUNDS. THESE REPORTS ARE REVIEWED BY TSF STAFF AND LEADERSHIP TO MONITOR THE APPROPRIATE USE OF GRANTS AND TO ENSURE THAT GRANTEE ACTIVITIES ALIGN WITH THE ORGANIZATION'S MISSION.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleF>
    <IRS990ScheduleI documentId="IRS990ScheduleI" softwareId="24020961" softwareVersionNum="2024v5.1">
      <GrantRecordsMaintainedInd>true</GrantRecordsMaintainedInd>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>Hearts for Mission International</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>901 San Bernardino Rd</AddressLine1Txt>
          <CityNm>Upland</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>91786</ZIPCd>
        </USAddress>
        <RecipientEIN>921978678</RecipientEIN>
        <IRCSectionDesc>501(c)(3)</IRCSectionDesc>
        <CashGrantAmt>15000</CashGrantAmt>
        <PurposeOfGrantTxt>EVERY HEART BEAT MATTERS</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>DIVINE WILL FOUNDATION</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>PO Box 235795</AddressLine1Txt>
          <CityNm>Encinitas</CityNm>
          <StateAbbreviationCd>CA</StateAbbreviationCd>
          <ZIPCd>92024</ZIPCd>
        </USAddress>
        <RecipientEIN>463820097</RecipientEIN>
        <IRCSectionDesc>501(c)(3)</IRCSectionDesc>
        <CashGrantAmt>35000</CashGrantAmt>
        <PurposeOfGrantTxt>EVERY HEART BEAT MATTERS</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>DUKE UNIVERSITY</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>PO BOX 602651</AddressLine1Txt>
          <CityNm>Charlotte</CityNm>
          <StateAbbreviationCd>NC</StateAbbreviationCd>
          <ZIPCd>27708</ZIPCd>
        </USAddress>
        <RecipientEIN>560532129</RecipientEIN>
        <IRCSectionDesc>501(c)(3)</IRCSectionDesc>
        <CashGrantAmt>70000</CashGrantAmt>
        <PurposeOfGrantTxt>EVERY HEART BEAT MATTERS</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>James Whitcomb Riley Memorial Association Inc</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>500 N Meridian Street Suite 100</AddressLine1Txt>
          <CityNm>Indianapolis</CityNm>
          <StateAbbreviationCd>IN</StateAbbreviationCd>
          <ZIPCd>46204</ZIPCd>
        </USAddress>
        <RecipientEIN>824499607</RecipientEIN>
        <IRCSectionDesc>501(c)(3)</IRCSectionDesc>
        <CashGrantAmt>35000</CashGrantAmt>
        <PurposeOfGrantTxt>EVERY HEART BEAT MATTERS</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>PERUVIAN AMERICAN MEDICAL SOCIETY</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>3009 Toreador Dr NE</AddressLine1Txt>
          <CityNm>Albuquerque</CityNm>
          <StateAbbreviationCd>NM</StateAbbreviationCd>
          <ZIPCd>87111</ZIPCd>
        </USAddress>
        <RecipientEIN>382827478</RecipientEIN>
        <IRCSectionDesc>501(c)(3)</IRCSectionDesc>
        <CashGrantAmt>37200</CashGrantAmt>
        <PurposeOfGrantTxt>EVERY HEART BEAT MATTERS</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>REGENTS OF THE UNIVERSITY OF MINNESOTA</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>NW 5957 PO Box 1450</AddressLine1Txt>
          <CityNm>Minneapolis</CityNm>
          <StateAbbreviationCd>MN</StateAbbreviationCd>
          <ZIPCd>55485</ZIPCd>
        </USAddress>
        <RecipientEIN>416007513</RecipientEIN>
        <IRCSectionDesc>501(c)(3)</IRCSectionDesc>
        <CashGrantAmt>35000</CashGrantAmt>
        <PurposeOfGrantTxt>EVERY HEART BEAT MATTERS</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>THE UNIVERSITY OF TEXAS AT AUSTIN</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>110 Inner Campus Dr MS K5300</AddressLine1Txt>
          <CityNm>Austin</CityNm>
          <StateAbbreviationCd>TX</StateAbbreviationCd>
          <ZIPCd>78705</ZIPCd>
        </USAddress>
        <RecipientEIN>746000203</RecipientEIN>
        <IRCSectionDesc>501(c)(3)</IRCSectionDesc>
        <CashGrantAmt>35000</CashGrantAmt>
        <PurposeOfGrantTxt>EVERY HEART BEAT MATTERS</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>UNIVERSITY OF UTAH</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>Office of Sponsored Projects 201</AddressLine1Txt>
          <CityNm>Salt Lake City</CityNm>
          <StateAbbreviationCd>UT</StateAbbreviationCd>
          <ZIPCd>84112</ZIPCd>
        </USAddress>
        <RecipientEIN>876000525</RecipientEIN>
        <IRCSectionDesc>501(c)(3)</IRCSectionDesc>
        <CashGrantAmt>35000</CashGrantAmt>
        <PurposeOfGrantTxt>EVERY HEART BEAT MATTERS</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>UNIVERSITY OF WASHINGTON</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>12455 Collections Dr</AddressLine1Txt>
          <CityNm>Chicago</CityNm>
          <StateAbbreviationCd>IL</StateAbbreviationCd>
          <ZIPCd>60693</ZIPCd>
        </USAddress>
        <RecipientEIN>916001537</RecipientEIN>
        <IRCSectionDesc>501(c)(3)</IRCSectionDesc>
        <CashGrantAmt>35000</CashGrantAmt>
        <PurposeOfGrantTxt>EVERY HEART BEAT MATTERS</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>UPMC PINNACLE FOUNDATION</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>409 S 2nd Street Suite 2A</AddressLine1Txt>
          <CityNm>Harrisburg</CityNm>
          <StateAbbreviationCd>PA</StateAbbreviationCd>
          <ZIPCd>17113</ZIPCd>
        </USAddress>
        <RecipientEIN>222691718</RecipientEIN>
        <IRCSectionDesc>501(c)(3)</IRCSectionDesc>
        <CashGrantAmt>35000</CashGrantAmt>
        <PurposeOfGrantTxt>EVERY HEART BEAT MATTERS</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>VOOM FOUNDATION</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>1602 Rock Prairie Rd Ste 130A</AddressLine1Txt>
          <CityNm>College Station</CityNm>
          <StateAbbreviationCd>TX</StateAbbreviationCd>
          <ZIPCd>77845</ZIPCd>
        </USAddress>
        <RecipientEIN>582678884</RecipientEIN>
        <IRCSectionDesc>501(c)(3)</IRCSectionDesc>
        <CashGrantAmt>35000</CashGrantAmt>
        <PurposeOfGrantTxt>EVERY HEART BEAT MATTERS</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>WILLIAM NOVICK GLOBAL CARDIAC ALLIANCE</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>1750 Madison Ave Ste 500</AddressLine1Txt>
          <CityNm>Memphis</CityNm>
          <StateAbbreviationCd>TN</StateAbbreviationCd>
          <ZIPCd>38104</ZIPCd>
        </USAddress>
        <RecipientEIN>061008595</RecipientEIN>
        <IRCSectionDesc>501(c)(3)</IRCSectionDesc>
        <CashGrantAmt>35000</CashGrantAmt>
        <PurposeOfGrantTxt>EVERY HEART BEAT MATTERS</PurposeOfGrantTxt>
      </RecipientTable>
      <Total501c3OrgCnt>12</Total501c3OrgCnt>
      <TotalOtherOrgCnt>0</TotalOtherOrgCnt>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>CAROLYN REED TRAVELING FELLOWSHIP</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>10000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>MICHAEL DAVIDSON FELLOWSHIP</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>20000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>TSF RESEARCH</GrantTypeTxt>
        <RecipientCnt>2</RecipientCnt>
        <CashGrantAmt>290000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>Lung Cancer Research Award</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>100000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>AZ Minority Health Research</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>100000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>BRAUNWALAD RESEARCH AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>110000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>STSA RESEARCH AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>80000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>REPLOGLE TRAVELING FELLOWSHIP</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>10000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>ALLEY SHERIDAN</GrantTypeTxt>
        <RecipientCnt>2</RecipientCnt>
        <CashGrantAmt>5000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>STS RESEARCH AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>180000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>STS Coronary Conference Resident Scholarship</GrantTypeTxt>
        <RecipientCnt>3</RecipientCnt>
        <CashGrantAmt>5360</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>Nicholas Kouchoukos Award</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>10000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>Vivien Thomas Award</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>10000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>Extraordinary Women in CT Surgery</GrantTypeTxt>
        <RecipientCnt>3</RecipientCnt>
        <CashGrantAmt>15000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>Douglas Mathisen Traveling Fellowship</GrantTypeTxt>
        <RecipientCnt>2</RecipientCnt>
        <CashGrantAmt>15000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>Robotic Cardiac Fellowship</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>25000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>STS Database Clinical Research</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>80000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>Catalyst Award for Research Support</GrantTypeTxt>
        <RecipientCnt>2</RecipientCnt>
        <CashGrantAmt>40000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>Catalyst Award for Data Access</GrantTypeTxt>
        <RecipientCnt>2</RecipientCnt>
        <CashGrantAmt>20000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>STS Perioperative &amp; Critical Care Conference</GrantTypeTxt>
        <RecipientCnt>3</RecipientCnt>
        <CashGrantAmt>3600</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>STS Mastering Valve Surgery Workshop</GrantTypeTxt>
        <RecipientCnt>3</RecipientCnt>
        <CashGrantAmt>5565</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>STS Asian Conference Scholarships</GrantTypeTxt>
        <RecipientCnt>8</RecipientCnt>
        <CashGrantAmt>9000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>International Medical Volunteer Scholarship</GrantTypeTxt>
        <RecipientCnt>3</RecipientCnt>
        <CashGrantAmt>7500</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>Every Heartbeat Matters</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>35000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>Robotic Thoracic Surgery Equity and Access Award</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>10000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule I, Part I, Line 2 Procedures for monitoring use of grant funds</FormAndLineReferenceDesc>
        <ExplanationTxt>EACH TSF GRANT PROJECT IS THOROUGHLY EVALUATED AND SCORED BY THREE TSF RESEARCH COMMITTEE REVIEWERS. THE RESEARCH REVIEWERS HAVE BEEN APPOINTED BYTHE TSF PRESIDENT AND APPROVED BY THE TSF BOARD OF DIRECTORS, AND SPECIALIZE IN THORACIC SURGERY. THE GRANT APPLICANT IS REQUIRED TO SUBMIT HIS/HER APPLICATION INCLUDING CV, HIS/HER MENTOR'S CV, RESEARCH DESCRIPTION, PHOTO, AND THREE LETTERS OF RECOMMENDATION FROM THE APPLICANT'S SUPERIOR AT THE INSTITUTION OF WHICH THEY ARE APPLYING THE RESEARCH. THE LETTERS OF RECOMMENDATION MUST COME FROM DEPARTMENT CHAIRS,PROGRAM DIRECTORS, OR SPONSORS AT THE INSTITUTION IN WHICH THE RESEARCH OCCURS. THE APPLICANT'S SPONSOR'S CV IS ALSO EVALUATED. EACH SUBSEQUENT GRANT PAYMENT IS ISSUED AFTER THE APPLICANT SUBMITS A VALID PROGRESS REPORT, AND AFTER THE INSTITUTION SUPPLIES A SIGNED FINANCIAL PROGRESS REPORT VALIDATING THE EXPENSES.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleI>
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      <SeverancePaymentInd>false</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>false</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>false</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>false</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>false</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>false</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>false</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>false</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>false</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Lee A Wiensch</PersonNm>
        <TitleTxt>Executive Director</TitleTxt>
        <BaseCompensationFilingOrgAmt>0</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>159694</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>16412</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
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        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>36244</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>0</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>227714</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule J, Part I, Line 3</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOCIETY OF THORACIC SURGEONS THROUGH ITS MANAGEMENT AGREEMENT WITH TSF IS RESPONSIBLE FOR DETERMINING COMPENSATION AND BENEIFTS. THE STS PROCESS INCLUDES ENGAGING WITH AN INDEPENDENT COMPENSATION CONSULTANT PERIODICALLY, USUALLY EVERY TWO OR THREE YEARS, TO PERFORM A MARKET SALARY ANALYSIS FOR STS POSITIONS. THE CONSULTANT MEETS WITH HUMAN RESOURCES TO ASCERTAIN INFORMATION RELEVANT TO EACH POSITION. THE CONSULTANT ALSO REVIEWS EACH OF THE POSITION DESCRIPTIONS, DETERMINES APPROPRIATE MATCHES FROM COMPENSATION MARKET SURVEYS, E.G., TOWERS WATSON, PRM, ASSOCIATION FORUM, AND ASAE, FOR COMPARABLE POSITIONS AT SIMILARLY SITUATED ORGANIZATIONS, AND COMPILES AND ANALYZES THIS MARKET DATA FOR EACH POSITION. THE CONSULTANT MEETS WITH THE CEO/EXECUTIVE DIRECTOR, VICE PRESIDENT OF FINANCE &amp; ADMINISTRATION AND ASSOCIATE DIRECTOR OF HUMAN RESOURCES TO REVIEW THE COMPENSATION ANALYSIS, AND MAKES ADJUSTMENTS TO THE ANALYSIS, AS APPROPRIATE. UTILIZING THE CONSULTANT'S ANALYSIS, THE CEO/EXECUTIVE DIRECTOR MAKES SALARY ADJUSTMENTS. AN INDEPENDENT COMPENSATION CONSULTANT WAS UTILIZED AS PART OF THIS PROCESS IN 2021. ADJUSTMENTS ARE MADE TO SALARIES ANNUALLY FOR MERIT INCREASES, WHICH ARE BASED ON FORMAL PERFORMANCE EVALUATIONS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="IRS990ScheduleO" softwareId="24020961" softwareVersionNum="2024v5.1">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part III, Line 4d Description of other program services</FormAndLineReferenceDesc>
        <ExplanationTxt>(Expenses $ 31,158 including grants of $ 30,000)(Revenue $ 0) OTHER PROGRAM SERVICES: 3 EXTRAORDINARY WOMEN IN CARDIOTHORACIC SURGERY AWARDS, RECOGNIZING WOMEN CARDIOTHORACIC SURGEONS WHO HAVE DEMONSTRATED EXCEPTIONAL CLINICAL EXPERTISE AND MADE SIGNIFICANT CONTRIBUTIONS TO THE FIELD. 2 ALLEY SHERIDAN SCHOLARSHIPS FOR EARLY-CAREER AND MID-CAREER CARDIOTHORACIC SURGEONS TO ATTEND THE STS LEADERSHIP INSTITUTE. 1 VIVEN THOMAS LECTURE AWARD- SPEAKER HONORARIUM AT THE STS ANNUAL MEETING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 15 COMPENSATION REVIEW PROCESS</FormAndLineReferenceDesc>
        <ExplanationTxt>COMPENSATION OF THE EXECUTIVE DIRECTOR IS DETERMINED BY A RELATED ORGANIZATION, THE SOCIETY OF THORACIC SURGEONS OF CHICAGO. THE RELATED ORGANIZATION UTILIZES AN INDEPENDENT COMPENSATION CONSULTANT, AND COMPENSATION SURVEYS OR STUDIES, TO DETERMINE COMPENSATION OF THE EXECUTIVE DIRECTOR OF TSF.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 18 HOW FORMS ARE MADE AVAILABLE TO THE PUBLIC</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990 IS AVAILABLE TO THE PUBLIC UPON REQUEST AT THE ADMINISTRATIVE OFFICES OF THE ORGANIZATION'S MANAGEMENT COMPANY (STS), AND ON THE FOUNDATION'S WEBSITE.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 3 Delegation of management duties</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOCIETY OF THORACIC SURGEONS (STS) MAINTAINS THE BOOKS AND RECORDS OF THE ORGANIZATION AND PERFORMS OTHER RELATED MANAGERIAL AND ADMINISTRATIVE FUNCTIONS FOR WHICH IT IS COMPENSATED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 4 Significant changes to organizational documents</FormAndLineReferenceDesc>
        <ExplanationTxt>DURING 2024, TSF REVISED ITS BYLAWS. THESE REVISIONS WERE AS FOLLOWS: 1. A new position of Historian (Non-Voting)was established. 2 Set the maximum number of TSF Board seats at 16 and the minimum number of Board seats at 11 to facilitate the added Board position and ensure compliance with Illinois state requirements that permitted a range of no more than five seats on a board of directors).</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 7a Members or stockholders electing members of governing body</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOCIETY OF THORACIC SURGEONS, A RELATED ORGANIZATION, IS RESPONSIBLE FOR THE APPROVAL OF BYLAW CHANGES AS WELL AS APPROVAL AND APPOINTMENT OF OFFICERS AND BOARD MEMBERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 7b Decisions requiring approval by members or stockholders</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOCIETY OF THORACIC SURGEONS, A RELATED ORGANIZATION, IS RESPONSIBLE FOR THE APPROVAL OF BYLAW CHANGES AS WELL AS APPROVAL AND APPOINTMENT OF OFFICERS AND BOARD MEMBERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 11b Review of form 990 by governing body</FormAndLineReferenceDesc>
        <ExplanationTxt>THE 990 IS REVIEWED BY THE ADMINISTRATIVE STAFF OF THE MANAGEMENT COMPANY (STS) AND IS THEN PROVIDED TO THE TREASURER, AND THEN GOVERNING BODY, FOR FINAL REVIEW BEFORE IT IS FILED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 12c Conflict of interest policy</FormAndLineReferenceDesc>
        <ExplanationTxt>TSF HAS A FORMAL CONFLICT OF INTEREST POLICY. ALL BOARD AND COMMITTEE MEMBERS ARE REQUIRED TO SIGN THE POLICY AND DISCLOSE CONFLICTS ANNUALLY. THE SIGNED POLICY AND DISCLOSURES ARE SENT TO TSF ADMINISTRATION. THEY ARE RECORDED AND MONITORED PERIODICALLY THROUGHOUT THE YEAR. IF THERE IS A CONFLICT, IT IS BROUGHT TO THE ATTENTION OF THE BOARD PRESIDENT FOR FURTHER ACTION. THE BOARD PRESIDENT READS A DISCLOSURE STATEMENT AT THE BEGINNING OF EACH BOARD MEETING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 19 Required documents available to the public</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CONFLICT OF INTEREST POLICY AND FINANCIAL STATEMENTS ARE AVAILABLE TO THE PUBLIC UPON REQUEST AT THE ADMINISTRATIVE OFFICES OF THE ORGANIZATION'S MANAGEMENT COMPANY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VII, Section A COMPENSATION</FormAndLineReferenceDesc>
        <ExplanationTxt>COMPENSATION REPORTED FOR LEE WIENSCH, TSF'S CURRENT EXECUTIVE DIRECTOR, IS PAID BY A RELATED ORGANIZATION AND COMMON PAYMASTER, THE SOCIETY OF THORACIC SURGEONS (STS) EIN 36-3022713. SINCE ALL SERVICES PERFORMED BY THIS INDIVIDUAL ARE FOR THE THORACIC SURGERY FOUNDATION, THE COMPENSATION HAS BEEN REPORTED IN COLUMN D AS IF PAID BY THE FILING ORGANIZATION. STS HAS COMPLIED WITH PAYROLL FILING REQUIREMENTS.</ExplanationTxt>
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        <PrimaryActivitiesTxt>TO ENHANCE THE ABILITY OF CARDIOTHORACIC SURGEONS.</PrimaryActivitiesTxt>
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