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        <OtherExpendituresAmt>350000</OtherExpendituresAmt>
        <EndYearBalanceAmt>10883590</EndYearBalanceAmt>
      </CYMinus4YrEndwmtFundGrp>
      <PrmnntEndowmentBalanceEOYPct>0.7</PrmnntEndowmentBalanceEOYPct>
      <TermEndowmentBalanceEOYPct>0.3</TermEndowmentBalanceEOYPct>
      <EndowmentsHeldUnrelatedOrgInd>true</EndowmentsHeldUnrelatedOrgInd>
      <EndowmentsHeldRelatedOrgInd>false</EndowmentsHeldRelatedOrgInd>
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        <OtherCostOrOtherBasisAmt>1252965</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>699346</DepreciationAmt>
        <BookValueAmt>553619</BookValueAmt>
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      <LeaseholdImprovementsGrp>
        <OtherCostOrOtherBasisAmt>1155992</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>675255</DepreciationAmt>
        <BookValueAmt>480737</BookValueAmt>
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      <EquipmentGrp>
        <OtherCostOrOtherBasisAmt>11926133</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>9915111</DepreciationAmt>
        <BookValueAmt>2011022</BookValueAmt>
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      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>260646</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>0</DepreciationAmt>
        <BookValueAmt>260646</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>3306024</TotalBookValueLandBuildingsAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>CAPITAL LEASE OBLIGATION</Desc>
        <Amt>988222</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>988222</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>14619118</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>-2222935</NetUnrealizedGainsInvstAmt>
      <OtherRevenueAmt>0</OtherRevenueAmt>
      <RevenueNotReportedAmt>-2222935</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>16842053</RevenueSubtotalAmt>
      <OtherRevenuesNotIncludedAmt>314648</OtherRevenuesNotIncludedAmt>
      <RevenueNotReportedFinclStmtAmt>314648</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>17156701</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>14462531</TotExpnsEtcAuditedFinclStmtAmt>
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      <ExpensesNotReportedAmt>0</ExpensesNotReportedAmt>
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      <OtherExpensesNotIncludedAmt>0</OtherExpensesNotIncludedAmt>
      <ExpensesNotRptFinclStmtAmt>0</ExpensesNotRptFinclStmtAmt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule D, Part V, Line 4 Intended uses of endowment funds</FormAndLineReferenceDesc>
        <ExplanationTxt>THIS ENDOWMENT WILL BE USED TO SUPPORT A LIMITED NUMBER OF JOINT APPOINTMENTS FOR INDIVIDUALS FROM ACADEMIC CLINICAL DEPARTMENTS AT ACCREDITED UNIVERSITIES FOR A PERIOD NOT TO EXCEED FOUR YEARS. THE PROGRAM IS INTENDED TO BE HIGHLY SELECTIVE AND WILL BE GUIDED BY A STEERING COMMITTEE TO BE APPOINTED BY THE INSTITUTE'S BOARD OF DIRECTORS. ALLOWANCE HAS BEEN MADE FOR ALTERNATIVE USES SHOULD THE INTENDED USE BECOME IMPOSSIBLE OR IMPRACTICAL.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule D, Part X, Line 2 FIN 48 (ASC 740) footnote</FormAndLineReferenceDesc>
        <ExplanationTxt>LIBR HAS BEEN DESIGNATED FOR TAX PURPOSES AS A MEDICAL RESEARCH ORGANIZATION UNDER SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE. THERE WAS NO UNRELATED BUSINESS INCOME IN 2022 OR 2021. LIBR WAS GRANTED A SALES TAX EXEMPTION PERMIT FROM THE STATE OF OKLAHOMA IN 2013.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule D, Part XI, Line 4(b) Other revenues in form 990 not in audited financial statements</FormAndLineReferenceDesc>
        <ExplanationTxt>2022 W.K WARREN &amp; CO DONATIONS RECEIVED IN 2023. - 314648</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
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      <SupplementalNonqualRtrPlanInd>false</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>false</EquityBasedCompArrngmInd>
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      <RltdOrgOfficerTrstKeyEmplGrp>
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          <BusinessNameLine1Txt>MARTIN PAULUS MD</BusinessNameLine1Txt>
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        <TotalCompensationFilingOrgAmt>601573</TotalCompensationFilingOrgAmt>
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        <BusinessName>
          <BusinessNameLine1Txt>COLLEEN MCCALLUM</BusinessNameLine1Txt>
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        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <BusinessName>
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        <TitleTxt>CHIEF TECH OFFICER (AS OF 06/27/2022)</TitleTxt>
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        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>80000</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>11587</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>221068</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <BusinessName>
          <BusinessNameLine1Txt>SAHIB KHALSA MD PHD</BusinessNameLine1Txt>
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        <TitleTxt>PHYSICIAN</TitleTxt>
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        <TotalCompensationFilingOrgAmt>373128</TotalCompensationFilingOrgAmt>
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        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <BusinessName>
          <BusinessNameLine1Txt>SALVADOR GUINJOAN MD PHD</BusinessNameLine1Txt>
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        <TitleTxt>SCIENTIST, RESEARCH CORE</TitleTxt>
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        <BonusFilingOrganizationAmount>0</BonusFilingOrganizationAmount>
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        <DeferredCompensationFlngOrgAmt>13984</DeferredCompensationFlngOrgAmt>
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        <TotalCompensationFilingOrgAmt>160696</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <BusinessName>
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      <RltdOrgOfficerTrstKeyEmplGrp>
        <BusinessName>
          <BusinessNameLine1Txt>EVAN WHITE PHD</BusinessNameLine1Txt>
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        <BonusFilingOrganizationAmount>1630</BonusFilingOrganizationAmount>
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        <OtherCompensationFilingOrgAmt>0</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>12610</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
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        <TotalCompensationFilingOrgAmt>152320</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
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        <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>COMPENSATION FOR THE PRESIDENT AND OFFICERS IS SET THROUGH A STRUCTURED REVIEW PROCESS. THE PROCESS INCLUDES AN EVALUATION OF COMPARABLE SALARIES FOR COMPARABLE POSITIONS IN SIMILAR ORGANIZATIONS BY AN INDEPENDENT EXTERNAL FIRM. COMPENSATION ADJUSTMENTS ARE REVIEWED AND APPROVED BY THE DIRECTORS. THE LAST COMPENSATION REVIEW WAS PERFORMED IN 2022.</ExplanationTxt>
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    </IRS990ScheduleJ>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part I, Line 5 Part V, LINE 2A - INDIVIDUALS EMPLOYED</FormAndLineReferenceDesc>
        <ExplanationTxt>LAUREATE INSTITUTE FOR BRAIN RESEARCH, INC (LIBR) STAFF IS ON LOAN FROM OTHER ENTITIES. LIBR ALSO HAS PERSONNEL SERVICE CONTRACTS WITH THE UNIVERSITY OF TULSA BOARD OF REGENTS, AND KRUSE PEO, INC. RELATED TO THE SERVICES OF THESE INDIVIDUALS. ALL REMAINING STAFF ARE ON LOAN FROM A SAINT FRANCIS HEALTH SYSTEM, INC. ENTITY, LAUREATE PSYCHIATRIC CLINIC AND HOSPITAL, INC. UNDER THIS AGREEMENT, LOANED STAFF PARTICIPATE IN ALL BENEFIT PLANS PROVIDED BY SAINT FRANCIS HEALTH SYSTEM, INC. AND LAUREATE PSYCHIATRIC CLINIC AND HOSPITAL, INC. AT 12/31/22 LIBR HAD 85 LOANED STAFF MEMBERS FROM SAINT FRANCIS HEALTH SYSTEM, FOUR LOANED STAFF MEMBERS FROM THE UNIVERSITY OF TULSA, AND TWO STAFF MEMBERS FROM KRUSE PEO.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part III, Line 1 ORGANIZATION'S MISSION</FormAndLineReferenceDesc>
        <ExplanationTxt>TO OPERATE EXCLUSIVELY FOR THE PROMOTION OF HEALTH AS A CHARITABLE, SCIENTIFIC, AND EDUCATIONAL PURPOSE, AND FOR THOSE PURPOSES TO PRIMARILY ENGAGE DIRECTLY IN THE CONTINUOUS ACTIVE CONDUCT OF MEDICAL RESEARCH WITHIN THE MEANING AND EXEMPTION OF SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE OF 1986, OR CORRESPONDING SECTION OF ANY FUTURE FEDERAL TAX CODE.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 2 Family/business relationships amongst interested persons</FormAndLineReferenceDesc>
        <ExplanationTxt>LAUREATE INSTITUTE FOR BRAIN RESEARCH BOARD MEMBERS AS ACTIVE COMMUNITY MEMBERS HAVE A - Business relationship</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 6 Classes of members or stockholders</FormAndLineReferenceDesc>
        <ExplanationTxt>LIBR HAS THREE MEMBERS.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 7a Members or stockholders electing members of governing body</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS APPOINT DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 8b Documentation of meetings held by committees of governing body</FormAndLineReferenceDesc>
        <ExplanationTxt>BOARD COMMITTEES CONTEMPORANEOUSLY RECORD MEETING MINUTES WHEN POSSIBLE, BUT DO NOT ALWAYS HAVE SOMEONE AVAILABLE TO DO SO. NOTEWORTHY ISSUES ARE REPORTED TO THE BOARD AT SUBSEQUENT MEETINGS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 11b Review of form 990 by governing body</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM 990 IS REVIEWED BY LIBR'S MANAGEMENT AND IS GIVEN TO EACH MEMBER OF THE LIBR BOARD OF DIRECTORS PRIOR TO FILING. THE FORM 990 IS ALSO REVIEWED BY AN OUTSIDE INDEPENDENT ACCOUNTING FIRM.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 12c Conflict of interest policy</FormAndLineReferenceDesc>
        <ExplanationTxt>ON AN ANNUAL BASIS, EVERY BOARD MEMBER COMPLETES AND SUBMITS A "CONFLICT OF INTEREST" FORM WHICH DETAILS ALL ENTITY AND BOARD AFFILIATIONS. THESE ARE REVIEWED BY LIBR OFFICERS AND MANAGEMENT. IN THE EVENT OF ANY POTENTIAL EXCESS BENEFIT CONFLICT OF INTEREST SITUATION, THE LIBR BOARD FOLLOWS PROCEDURES REQUIRING DISCLOSURE OF THE CONFLICT OF INTEREST BY THE PARTY WITH THE CONFLICT, RECUSAL FROM VOTING BY THE PARTY WITH A CONFLICT, REVIEW OF THE MATTER BY INDEPENDENT PERSONS ON THE LIBR BOARD OR COMMITTEE WHO MAKE A DECISION ON THE MATTER BASED ON THE BEST INTERESTS OF LIBR AFTER REVIEW AND CONSIDERATION OF APPROPRIATE AND RELEVANT DATA RELATED TO THE MATTER, AND HAVING SUCH DECISION BY THE INDEPENDENT GROUP DOCUMENTED IN WRITING IN THE MINUTES OF THE MEETING MAKING SUCH DECISION, WITH SUCH MINUTES BEING REVIEWED AND APPROVED AT THE NEXT MEETING OF SUCH BODY.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 19 Required documents available to the public</FormAndLineReferenceDesc>
        <ExplanationTxt>DOCUMENTS SUBJECT TO PUBLIC DISCLOSURES ARE MADE AVAILABLE ON AN "AS REQUESTED" BASIS AS REQUIRED.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part XI, Line 9 Other changes in net assets or fund balances</FormAndLineReferenceDesc>
        <ExplanationTxt>FINANCIAL STATEMENT ADJUSTMENT FOR REVENUES RECEIVED IN 2022. - -314648;</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, LINE 13 &amp; 14 WHISTLEBLOWER POLICY, DOCUMENT RETENTION, AND DESTRUCTION POLICY</FormAndLineReferenceDesc>
        <ExplanationTxt>BECAUSE LIBR STAFF MEMBERS ARE ON LOAN FROM SAINT FRANCIS HEALTH SYSTEM INC., EIN 73-1501972, THEY CONFORM TO THE SFHS GUIDELINES WHICH INCLUDE WRITTEN POLICIES FOR WHISTLEBLOWING AND DOCUMENT RETENTION AND DESTRUCTION.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, LINE 15A &amp; 15B PROCESS TO ESTABLISH COMPENSATION OF TOP MANAGEMENT &amp; OFFICERS</FormAndLineReferenceDesc>
        <ExplanationTxt>COMPENSATION FOR THE PRESIDENT AND OFFICERS IS SET THROUGH A STRUCTURED REVIEW PROCESS. THIS PROCESS INCLUDES AN EVALUATION OF COMPARABLE SALARIES FOR COMPARABLE POSITIONS IN SIMILAR ORGANIZATIONS BY AN INDEPENDENT EXTERNAL FIRM. COMPENSATION ADJUSTMENTS ARE REVIEWED AND APPROVED BY THE DIRECTORS. THE LAST COMPENSATION REVIEW WAS PERFORMED IN 2022.</ExplanationTxt>
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          <AddressLine1Txt>PO BOX 470372</AddressLine1Txt>
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          <StateAbbreviationCd>OK</StateAbbreviationCd>
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        <EIN>731328882</EIN>
        <PrimaryActivitiesTxt>HEALTHCARE RESEARCH</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>OK</LegalDomicileStateCd>
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          <BusinessNameLine1Txt>NA</BusinessNameLine1Txt>
        </DirectControllingEntityName>
        <ControlledOrganizationInd>false</ControlledOrganizationInd>
      </IdRelatedTaxExemptOrgGrp>
      <ReceiptOfIntAnntsRntsRyltsInd>false</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>false</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>false</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>false</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>false</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>false</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>false</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>false</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>false</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>false</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>false</RentalOfFcltsFromOthOrgInd>
      <PerformOfServicesForOthOrgInd>false</PerformOfServicesForOthOrgInd>
      <PerformOfServicesByOtherOrgInd>true</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>false</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>false</PaidEmployeesSharingInd>
      <ReimbursementPaidToOtherOrgInd>false</ReimbursementPaidToOtherOrgInd>
      <ReimbursementPaidByOtherOrgInd>false</ReimbursementPaidByOtherOrgInd>
      <TransferToOtherOrgInd>false</TransferToOtherOrgInd>
      <TransferFromOtherOrgInd>false</TransferFromOtherOrgInd>
      <TransactionsRelatedOrgGrp>
        <OtherOrganizationName>
          <BusinessNameLine1Txt>LAUREATE MENTAL HEALTH CORPORATION</BusinessNameLine1Txt>
        </OtherOrganizationName>
        <TransactionTypeTxt>M</TransactionTypeTxt>
        <InvolvedAmt>18000</InvolvedAmt>
        <MethodOfAmountDeterminationTxt>FMV</MethodOfAmountDeterminationTxt>
      </TransactionsRelatedOrgGrp>
    </IRS990ScheduleR>
  </ReturnData>
</Return>
