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      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Joseph Loscalzo MD PHD</PersonNm>
        <TitleTxt>Trustee (END 4/15/24)</TitleTxt>
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      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Jeffrey Meyerhardt MD MPH</PersonNm>
        <TitleTxt>Trustee</TitleTxt>
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        <CompensationBasedOnRltdOrgsAmt>554093</CompensationBasedOnRltdOrgsAmt>
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        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
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        <TotalCompensationFilingOrgAmt>0</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>809685</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>BRUCE LEVY</PersonNm>
        <TitleTxt>TRUSTEE (AS OF 4/15/24)</TitleTxt>
        <BaseCompensationFilingOrgAmt>0</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>550699</CompensationBasedOnRltdOrgsAmt>
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        <BonusRelatedOrganizationsAmt>54156</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>43902</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>44793</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>750</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>0</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>694300</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>RAMESH A SHIVDASANI MD</PersonNm>
        <TitleTxt>TRUSTEE</TitleTxt>
        <BaseCompensationFilingOrgAmt>0</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>483344</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>33123</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>46440</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>11169</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>0</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>574076</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Laurie H Glimcher MD</PersonNm>
        <TitleTxt>FORMER OFFICER</TitleTxt>
        <BaseCompensationFilingOrgAmt>0</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>1413095</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>540784</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>151265</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>336307</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>18374</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>0</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>2459825</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Sally Mason Boemer</PersonNm>
        <TitleTxt>Treasurer</TitleTxt>
        <BaseCompensationFilingOrgAmt>0</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>1074139</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>260068</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>82956</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
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        <NontaxableBenefitsFilingOrgAmt>0</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>39089</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>0</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>1492552</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Effie Chan</PersonNm>
        <TitleTxt>Clerk</TitleTxt>
        <BaseCompensationFilingOrgAmt>0</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>210650</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>11742</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>23308</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>23798</DeferredCompRltdOrgsAmt>
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        <NontaxableBenefitsRltdOrgsAmt>34482</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>0</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>303980</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Hillary Mankin-Kufe ESQ</PersonNm>
        <TitleTxt>FORMER CLERK</TitleTxt>
        <BaseCompensationFilingOrgAmt>0</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>262985</CompensationBasedOnRltdOrgsAmt>
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        <OtherCompensationRltdOrgsAmt>5139</OtherCompensationRltdOrgsAmt>
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        <DeferredCompRltdOrgsAmt>22356</DeferredCompRltdOrgsAmt>
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        <NontaxableBenefitsRltdOrgsAmt>10535</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>0</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>301015</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule J, Part I, Line 3 Arrangement used to establish the top management official's compensation</FormAndLineReferenceDesc>
        <ExplanationTxt>MASS GENERAL BRIGHAM HAS A BOARD LEVEL COMPENSATION COMMITTEE THAT REVIEWS AND APPROVES THE COMPENSATION FOR CERTAIN OFFICERS AND KEY EMPLOYEES. THE COMMITTEE IS COMPRISED OF MEMBERS OF THE BOARD WHO ARE NOT EMPLOYED BY THE ORGANIZATION, AND NO MEMBER MAY PARTICIPATE IN THE REVIEW AND APPROVAL OF COMPENSATION IF THE MEMBER HAS A CONFLICT OF INTEREST WITH RESPECT TO THAT COMPENSATION ARRANGEMENT. THE COMMITTEE RELIES ON DATA, PROVIDED BY AN INDEPENDENT COMPENSATION CONSULTANT, WHICH INCLUDES COMPARABLE COMPENSATION FOR SIMILARLY QUALIFIED PERSONS, IN FUNCTIONALLY COMPARABLE POSITIONS, AT SIMILARLY SITUATED ORGANIZATIONS. THE DELIBERATIONS AND DECISIONS OF THE COMMITTEE ARE DOCUMENTED IN MINUTES OF THE MEETING. THIS REVIEW PROCESS OCCURS AT LEAST ON AN ANNUAL AND PROSPECTIVE BASIS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule J, Part I, Line 4b Supplemental nonqualified retirement plan</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FOLLOWING INDIVIDUALS PARTICIPATE IN 457(F) PLANS ESTABLISHED BY DFCI; TAXABLE AMOUNTS ARE INCLUDED IN REPORTABLE COMPENSATION IN SCHEDULE J, PART II, COLUMN (B)(III): LAURIE H. GLIMCHER, MD $136,433 BRUCE JOHNSON, MD $30,269 RAMESH A. SHIVDASANI, MD $19,352</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule J, Part II, Column (B)(iii) AND COLUMN C</FormAndLineReferenceDesc>
        <ExplanationTxt>THE DEFERRED COMPENSATION AWARDS/OTHER BENEFITS FIGURE MAY INCLUDE AWARDS OF DEFERRED COMPENSATION, THE VALUE OF OTHER EMPLOYEE TAXABLE BENEFITS IN WHICH THE EMPLOYEE PARTICIPATES, SUCH AS LIFE INSURANCES, DEFERRED COMPENSATION PLANS, TUITION BENEFIT PLANS, HOUSING ALLOWANCES, AND THE VALUE OF NON-TAXABLE EMPLOYEE BENEFIT PLANS SUCH AS PENSION, GROUP HEALTH, LIFE, AND DISABILITY WHICH THE EMPLOYER PROVIDES TO EMPLOYEES ON A NON-DISCRIMINATORY BASIS AS REQUIRED BY THE IRS. NONE OF THE OFFICERS OR EMPLOYEES RECEIVE EXPENSE ACCOUNTS OR ALLOWANCES WHICH CONSTITUTE TAXABLE COMPENSATION. THE CORPORATION HAS AN "ACCOUNTABLE PLAN" WHICH PAYS FOR OR REIMBURSES EXPENSES ONLY IF THEY ARE DINARY, NECESSARY, AND REASONABLE" EXPENSES "INCURRED FOR A BONA FIDE BUSINESS PURPOSE." THE CORPORATION CARRIES LIABILITY INSURANCE THAT COVERS ITS TRUSTEES AND OFFICERS. THIS INSURANCE COVERAGE PROVIDES AN INCIDENTAL BENEFIT TO THE COVERED INDIVIDUALS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleJ>
    <IRS990ScheduleO documentId="IRS990ScheduleO" softwareId="23017437" softwareVersionNum="2023v6.0">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 7a and Line 7B - POWER TO ELECT OR APPOINT GOVERNING BODY</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MEMBERS HAVE THE AUTHORITY TO ELECT OR APPOINT THE GOVERNING BODY OF DF/MGBCC, INC. CERTAIN GOVERNANCE DECISIONS RELATING TO SIGNIFICANT TRANSACTIONS, AMENDMENTS TO THE GOVERNING DOCUMENTS OF THE CORPORATION AND THE DISSOLUTION OF THE CORPORATION ARE RESERVED TO THE MEMBERS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 6 Classes of members or stockholders</FormAndLineReferenceDesc>
        <ExplanationTxt>DANA-FARBER CANCER INSTITUTE, INC. ("DFCI") AND MASS GENERAL BRIGHAM, INC. ("MGB") ARE THE MEMBERS OF DANA-FARBER/MASS GENERAL BRIGHAM CANCER CARE, INC. ("DF/MGBCC, INC.")</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 9 Interested person not at organization's address</FormAndLineReferenceDesc>
        <ExplanationTxt>JOSEPH LOSCALZO, DAVID P. RYAN, PAUL ANDERSON, EFFIE CHAN, AND SALLY MASON BOEMER CAN BE REACHED AT 399 REVOLUTION DRIVE 645 SOMERVILLE, MA 02145.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 11b Review of form 990 by governing body</FormAndLineReferenceDesc>
        <ExplanationTxt>THE DANA-FARBER CANCER INSTITUTE TAX DEPARTMENT PROVIDES ALL FINANCIAL ANALYSIS AND OTHER INFORMATION TO BE INCLUDED ON THE TAX RETURN TO ITS EXTERNAL TAX PREPARER, ERNST &amp; YOUNG LLP, WHICH PREPARES THE DRAFT RETURN. THE DRAFT RETURN IS REVIEWED BY THE TREASURER AND THE BOARD OF TRUSTEES. A FINAL VERSION OF THE FORM IS MADE AVAILABLE TO THE BOARD BEFORE FILING WITH THE IRS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 12c Conflict of interest policy</FormAndLineReferenceDesc>
        <ExplanationTxt>DF/MGBCC, INC. HAS A WRITTEN CONFLICT OF INTEREST POLICY THAT IS CONSISTENT WITH THE IRS SAMPLE CONFLICT OF INTEREST POLICY. PER THE DF/MGBCC, INC. CONFLICT OF INTEREST POLICY, IN ORDER TO AVOID A CONFLICT OF INTEREST OR AN APPEARANCE OF A CONFLICT OF INTEREST A TRUSTEE SHOULD NOT PARTICIPATE IN A VOTE ON A TRANSACTION IN WHICH THE TRUSTEE OR FAMILY MEMBER HAS A FINANCIAL INTEREST AND SHOULD DISCLOSE ANY POTENTIAL CONFLICT BEFORE DF/MGBCC, INC. ACTS ON THE TRANSACTION. IF A DISCLOSURE WAS MADE, THE BOARD OF TRUSTEES WOULD INVESTIGATE ALTERNATIVES TO THE PROPOSED TRANSACTION AND DETERMINE WHETHER A MORE ADVANTAGEOUS TRANSACTION THAT WOULD NOT GIVE RISE TO A CONFLICT WOULD BE REASONABLY ATTAINABLE. IF SUCH A TRANSACTION IS NOT ATTAINABLE, A TRANSACTION WITH A TRUSTEE, A MEMBER OF HIS OR HER FAMILY, OR AN ENTITY WITH WHICH ONE OR MORE OF THEM HAS A MATERIAL INTEREST, MAY BE APPROVED BY THE MAJORITY VOTE OF THE DISINTERESTED TRUSTEES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 15a Process to establish compensation of top management official</FormAndLineReferenceDesc>
        <ExplanationTxt>MASS GENERAL BRIGHAM HAS A BOARD LEVEL COMPENSATION COMMITTEE THAT REVIEWS AND APPROVES THE COMPENSATION FOR CERTAIN OFFICERS AND KEY EMPLOYEES. THE COMMITTEE IS COMPRISED OF MEMBERS OF THE BOARD WHO ARE NOT EMPLOYED BY THE ORGANIZATION, AND NO MEMBER MAY PARTICIPATE IN THE REVIEW AND APPROVAL OF COMPENSATION IF THE MEMBER HAS A CONFLICT OF INTEREST WITH RESPECT TO THAT COMPENSATION ARRANGEMENT. THE COMMITTEE RELIES ON DATA, PROVIDED BY AN INDEPENDENT COMPENSATION CONSULTANT, WHICH INCLUDES COMPARABLE COMPENSATION FOR SIMILARLY QUALIFIED PERSONS, IN FUNCTIONALLY COMPARABLE POSITIONS, AT SIMILARLY SITUATED ORGANIZATIONS. THE DELIBERATIONS AND DECISIONS OF THE COMMITTEE ARE DOCUMENTED IN MINUTES OF THE MEETING. THIS REVIEW PROCESS OCCURS AT LEAST ON AN ANNUAL AND PROSPECTIVE BASIS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 19 Required documents available to the public</FormAndLineReferenceDesc>
        <ExplanationTxt>GOVERNING DOCUMENTS: WE CURRENTLY PROVIDE THE GOVERNING DOCUMENTS UPON REQUEST. THE ARTICLES OF ORGANIZATION ARE ALSO AVAILABLE TO THE PUBLIC ON THE SECRETARY OF THE COMMONWEALTH'S WEBSITE. CONFLICT OF INTEREST POLICY: DF/MGBCC, INC.'S CONFLICT OF INTEREST POLICY IS AVAILABLE UPON REQUEST. FINANCIAL STATEMENTS: AUDITED FINANCIAL STATEMENTS ARE PROVIDED UPON REQUEST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VII, Section A line 1a</FormAndLineReferenceDesc>
        <ExplanationTxt>THE INDIVIDUALS WHO HAVE COMPENSATION FROM RELATED ORGANIZATIONS IN COLUMN E SPEND THE REMAINDER OF THEIR FULL-TIME HOURS WORKING FOR DANA-FARBER CANCER INSTITUTE, INC. OR MASS GENERAL BRIGHAM, INC. AND ITS AFFILIATES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part IX, Line 11g Other Fees</FormAndLineReferenceDesc>
        <ExplanationTxt>INST. SUPPORT - Total Expense: XXX-XX-XXXX, Program Service Expense: XXX-XX-XXXX, Management and General Expenses: , Fundraising Expenses: ;</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
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          <AddressLine1Txt>450 BROOKLINE AVENUE BP418</AddressLine1Txt>
          <CityNm>BOSTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02215</ZIPCd>
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        <PrimaryActivitiesTxt>CANCER CARE</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>7</PublicCharityStatusTxt>
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      <IdRelatedTaxExemptOrgGrp>
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          <BusinessNameLine1Txt>THE GENERAL HOSPITAL CORPORATION</BusinessNameLine1Txt>
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          <AddressLine1Txt>55 FRUIT STREET</AddressLine1Txt>
          <CityNm>BOSTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02215</ZIPCd>
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        <EIN>042697983</EIN>
        <PrimaryActivitiesTxt>HOSPITAL</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
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        <PublicCharityStatusTxt>3</PublicCharityStatusTxt>
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        <ControlledOrganizationInd>false</ControlledOrganizationInd>
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      <IdRelatedTaxExemptOrgGrp>
        <DisregardedEntityName>
          <BusinessNameLine1Txt>THE BRIGHAM &amp; WOMEN'S HOSPITAL</BusinessNameLine1Txt>
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          <AddressLine1Txt>75 FRANCIS STREET</AddressLine1Txt>
          <CityNm>BOSTON</CityNm>
          <StateAbbreviationCd>MA</StateAbbreviationCd>
          <ZIPCd>02215</ZIPCd>
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        <EIN>042312909</EIN>
        <PrimaryActivitiesTxt>HOSPITAL</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MA</LegalDomicileStateCd>
        <ExemptCodeSectionTxt>501(c)(3)</ExemptCodeSectionTxt>
        <PublicCharityStatusTxt>3</PublicCharityStatusTxt>
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      <ReceiptOfIntAnntsRntsRyltsInd>false</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>false</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>false</GiftGrntCapContriFromOthOrgInd>
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      <LoansOrGuaranteesFromOthOrgInd>false</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>false</DivRelatedOrganizationInd>
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      <RentalOfFcltsFromOthOrgInd>false</RentalOfFcltsFromOthOrgInd>
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      <ReimbursementPaidToOtherOrgInd>false</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>false</ReimbursementPaidByOtherOrgInd>
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          <BusinessNameLine1Txt>DANA-FARBER CANCER INSTITUTE INC</BusinessNameLine1Txt>
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        <InvolvedAmt>75848193</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>COST</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>THE GENERAL HOSPITAL CORPORATION</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>M</TransactionTypeTxt>
        <InvolvedAmt>49978414</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>COST</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>THE BRIGHAM AND WOMEN'S HOSPITAL</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>M</TransactionTypeTxt>
        <InvolvedAmt>3154495</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>COST</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
    </IRS990ScheduleR>
  </ReturnData>
</Return>
