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          <StateAbbreviationCd>CO</StateAbbreviationCd>
          <ZIPCd>80123</ZIPCd>
        </USAddress>
        <RecipientEIN>271435443</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>37500</CashGrantAmt>
        <PurposeOfGrantTxt>EVERY HEART BEAT MATTERS</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>CHILDREN'S NATIONAL RESEARCH INSTITUTE</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>111 MICHIGAN AVENUE NW</AddressLine1Txt>
          <CityNm>WASHINGTON</CityNm>
          <StateAbbreviationCd>DC</StateAbbreviationCd>
          <ZIPCd>20010</ZIPCd>
        </USAddress>
        <RecipientEIN>521654453</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>130 W SUPERIOR ST SUITE 926</AddressLine1Txt>
          <CityNm>DULUTH</CityNm>
          <StateAbbreviationCd>MN</StateAbbreviationCd>
          <ZIPCd>55802</ZIPCd>
        </USAddress>
        <RecipientEIN>582678884</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>70000</CashGrantAmt>
        <PurposeOfGrantTxt>EVERY HEART BEAT MATTERS</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>JOYCE FAMILY FOUNDATION</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>12037 W BONNIWELL ROAD</AddressLine1Txt>
          <CityNm>MEQUON</CityNm>
          <StateAbbreviationCd>WI</StateAbbreviationCd>
          <ZIPCd>53097</ZIPCd>
        </USAddress>
        <RecipientEIN>411797421</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>35000</CashGrantAmt>
        <PurposeOfGrantTxt>EVERY HEART BEAT MATTERS</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>UNIVERSITY OF COLORADO</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>PO BOX 910238</AddressLine1Txt>
          <CityNm>DENVER</CityNm>
          <StateAbbreviationCd>CO</StateAbbreviationCd>
          <ZIPCd>80291</ZIPCd>
        </USAddress>
        <RecipientEIN>846049811</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>37500</CashGrantAmt>
        <PurposeOfGrantTxt>EVERY HEART BEAT MATTERS</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>UNIVERSITY OF UTAH CARDIOTHORACIC SURGERY</BusinessNameLine1Txt>
        </RecipientBusinessName>
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          <AddressLine1Txt>30 N 1900 EAST SOM 3C-127</AddressLine1Txt>
          <CityNm>SALT LAKE CITY</CityNm>
          <StateAbbreviationCd>UT</StateAbbreviationCd>
          <ZIPCd>84132</ZIPCd>
        </USAddress>
        <RecipientEIN>876000525</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>31650</CashGrantAmt>
        <PurposeOfGrantTxt>EVERY HEART BEAT MATTERS</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>REGENTS OF THE UNIVERSITY OF MICHIGAN</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>1500 EAST MEDICAL CENTER DRIVE CVC</AddressLine1Txt>
          <AddressLine2Txt>5144</AddressLine2Txt>
          <CityNm>ANN ARBOR</CityNm>
          <StateAbbreviationCd>MI</StateAbbreviationCd>
          <ZIPCd>48109</ZIPCd>
        </USAddress>
        <RecipientEIN>386006309</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>25000</CashGrantAmt>
        <PurposeOfGrantTxt>ROBOTIC CARDIAC FELLOWSHIP</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>ST JOHN HEALTH SYSTEM FOUNDATION INC</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>1923 S UTICA</AddressLine1Txt>
          <CityNm>TULSA</CityNm>
          <StateAbbreviationCd>OK</StateAbbreviationCd>
          <ZIPCd>74104</ZIPCd>
        </USAddress>
        <RecipientEIN>731133139</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>25000</CashGrantAmt>
        <PurposeOfGrantTxt>ROBOTIC CARDIAC FELLOWSHIP</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>MCGOVERN MEDICAL SCHOOL DEP OF CARDIOTHORACIC AND VASCULAR SURGERY</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>6431 FANNIN SUITE 6156</AddressLine1Txt>
          <CityNm>HOUSTON</CityNm>
          <StateAbbreviationCd>TX</StateAbbreviationCd>
          <ZIPCd>77030</ZIPCd>
        </USAddress>
        <RecipientEIN>741761309</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>25000</CashGrantAmt>
        <PurposeOfGrantTxt>ROBOTIC CARDIAC FELLOWSHIP</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>MAYO CLINIC</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>PO BOX 860334</AddressLine1Txt>
          <CityNm>MINNEAPOLIS</CityNm>
          <StateAbbreviationCd>MN</StateAbbreviationCd>
          <ZIPCd>55486</ZIPCd>
        </USAddress>
        <RecipientEIN>416011702</RecipientEIN>
        <IRCSectionDesc>501(C)(3)</IRCSectionDesc>
        <CashGrantAmt>25000</CashGrantAmt>
        <PurposeOfGrantTxt>ROBOTIC CARDIAC FELLOWSHIP</PurposeOfGrantTxt>
      </RecipientTable>
      <Total501c3OrgCnt>10</Total501c3OrgCnt>
      <TotalOtherOrgCnt>0</TotalOtherOrgCnt>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>LEVI WATKINS FELLOWSHIP</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>5000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>CAROLYN REED TRAVELING FELLOWSHIP</GrantTypeTxt>
        <RecipientCnt>3</RecipientCnt>
        <CashGrantAmt>16500</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>MICHAEL DAVIDSON FELLOWSHIP</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>25000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>SARNS TERUMO PERFUSION EDUCATION FELLOWSHIP AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>10000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>ROBOTIC CARDIAC FELLOWSHIP</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>25000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>TSF RESEARCH</GrantTypeTxt>
        <RecipientCnt>5</RecipientCnt>
        <CashGrantAmt>310000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>BRAUNWALAD RESEARCH AWARD</GrantTypeTxt>
        <RecipientCnt>2</RecipientCnt>
        <CashGrantAmt>90000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>STSA RESEARCH AWARD</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>60000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>REPLOGLE TRAVELING FELLOWSHIP</GrantTypeTxt>
        <RecipientCnt>1</RecipientCnt>
        <CashGrantAmt>10000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>TSF INT'L MEDICAL VOL. EDWARDS AWARDS</GrantTypeTxt>
        <RecipientCnt>6</RecipientCnt>
        <CashGrantAmt>13350</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <GrantsOtherAsstToIndivInUSGrp>
        <GrantTypeTxt>ALLEY SHERIDAN</GrantTypeTxt>
        <RecipientCnt>10</RecipientCnt>
        <CashGrantAmt>25000</CashGrantAmt>
      </GrantsOtherAsstToIndivInUSGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>EACH TSF GRANT PROJECT IS THOROUGHLY EVALUATED AND SCORED BY THREE TSF RESEARCH COMMITTEE REVIEWERS. THE RESEARCH REVIEWERS HAVE BEEN APPOINTED BY THE 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>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOCIETY OF THORACIC SURGEONS (STS) OF CHICAGO, ILLINOIS, 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, SECTION B, LINE 11B</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, SECTION B, LINE 12C</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, SECTION B, LINE 15</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, SECTION C, LINE 18</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, SECTION C, LINE 19</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 PRISCILLA S. KENNEDY, TSF 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 WERE 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>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
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      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>THE SOCIETY OF THORACIC SURGEONS</BusinessNameLine1Txt>
        </DisregardedEntityName>
        <USAddress>
          <AddressLine1Txt>633 N SAINT CLAIR ST</AddressLine1Txt>
          <CityNm>CHICAGO</CityNm>
          <StateAbbreviationCd>IL</StateAbbreviationCd>
          <ZIPCd>60611</ZIPCd>
        </USAddress>
        <EIN>363022713</EIN>
        <PrimaryActivitiesTxt>TO ENHANCE THE ABILITY OF CARDIOTHORACIC SURGEONS.</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>IL</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(C)(6)</ExemptCodeSectionTxt>
        <ControlledOrganizationInd>0</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>0</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>0</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>1</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>0</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>0</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>0</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>0</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>0</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>0</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>0</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>0</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>0</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>1</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>1</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>1</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>1</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>0</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>0</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>1</TransferFromOtherOrgInd>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>THE SOCIETY OF THORACIC SURGEONS</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>C</TransactionTypeTxt>
        <InvolvedAmt>607112</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>CASH PAID</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
    </IRS990ScheduleR>
  </ReturnData>
</Return>