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        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>3400</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>IRENE LITVAN MD</PersonNm>
        <TitleTxt>TREASURER</TitleTxt>
        <AverageHoursPerWeekRt>5.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MARINA AJ DE KONING-TIJSSEN MD PHD</PersonNm>
        <TitleTxt>SECRETARY-ELECT</TitleTxt>
        <AverageHoursPerWeekRt>5.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <OfficerInd>X</OfficerInd>
        <ReportableCompFromOrgAmt>1500</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ALICE M NIEUWBOER PHD</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>500</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>CRISTIAN FALUP-PECURARIU MD</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>2000</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>MARK J EDWARDS MBBS BSC FRCP PHD</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ENG-KING TAN MD</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>300</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>NOBUTAKA HATTORI MD PHD</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>ROONGROJ BHIDAYASIRI MD FRCP FRCPI</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>3050</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>REGINA KATZENSCHLAGER MD</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>HYDER A JINNAH MD PHD</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>500</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>TATYANA SIMUNI MD</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>2500</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <PersonNm>RUEY-MEEI WU MD PHD</PersonNm>
        <TitleTxt>DIRECTOR</TitleTxt>
        <AverageHoursPerWeekRt>1.00</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>8750</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
        <OtherCompensationAmt>0</OtherCompensationAmt>
      </Form990PartVIISectionAGrp>
      <TotalReportableCompFromOrgAmt>66350</TotalReportableCompFromOrgAmt>
      <TotReportableCompRltdOrgAmt>0</TotReportableCompRltdOrgAmt>
      <TotalOtherCompensationAmt>0</TotalOtherCompensationAmt>
      <IndivRcvdGreaterThan100KCnt>0</IndivRcvdGreaterThan100KCnt>
      <FormerOfcrEmployeesListedInd>0</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>0</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>0</CompensationFromOtherSrcsInd>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>EXECUTIVE DIRECTOR INC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>555 EAST WELLS ST STE 1100</AddressLine1Txt>
            <CityNm>MIILWAUKEE</CityNm>
            <StateAbbreviationCd>WI</StateAbbreviationCd>
            <ZIPCd>53202</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>MANAGEMENT</ServicesDesc>
        <CompensationAmt>4213740</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>FREEMAN</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>3801 ADLER DRIVE SUITE 150</AddressLine1Txt>
            <CityNm>DALLAS</CityNm>
            <StateAbbreviationCd>TX</StateAbbreviationCd>
            <ZIPCd>75211</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>VIRTUAL MEETING PLATFORM</ServicesDesc>
        <CompensationAmt>366396</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>BLUE SKY ELEARN LLC</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <USAddress>
            <AddressLine1Txt>5405 MOREHOUSE DRIVE</AddressLine1Txt>
            <CityNm>SAN DIEGO</CityNm>
            <StateAbbreviationCd>CA</StateAbbreviationCd>
            <ZIPCd>92121</ZIPCd>
          </USAddress>
        </ContractorAddress>
        <ServicesDesc>PRODUCTION &amp; STREAMING SERVICES</ServicesDesc>
        <CompensationAmt>328750</CompensationAmt>
      </ContractorCompensationGrp>
      <ContractorCompensationGrp>
        <ContractorName>
          <BusinessName>
            <BusinessNameLine1Txt>KING'S COLLEGE LONDON</BusinessNameLine1Txt>
          </BusinessName>
        </ContractorName>
        <ContractorAddress>
          <ForeignAddress>
            <AddressLine1Txt>5-11 LAVINGTON STREET</AddressLine1Txt>
            <CityNm>LONDON</CityNm>
            <CountryCd>UK</CountryCd>
            <ForeignPostalCd>SE1 0NZ</ForeignPostalCd>
          </ForeignAddress>
        </ContractorAddress>
        <ServicesDesc>RESEARCH, VALIDATION OF MDS-NMS-Q</ServicesDesc>
        <CompensationAmt>117009</CompensationAmt>
      </ContractorCompensationGrp>
      <CntrctRcvdGreaterThan100KCnt>4</CntrctRcvdGreaterThan100KCnt>
      <AllOtherContributionsAmt>168419</AllOtherContributionsAmt>
      <TotalContributionsAmt>168419</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>CLINICAL OUTCOME ASSESSMENTS</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>4697840</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>4697840</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>CONGRESS</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>2165500</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>2123000</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>42500</UnrelatedBusinessRevenueAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>MEMBERSHIP DUES</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>903950</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>903950</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>REGIONAL SECTIONS</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>512973</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>512973</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <ProgramServiceRevenueGrp>
        <Desc>JOURNAL</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>316650</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>316650</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalOthProgramServiceRevGrp>
        <TotalRevenueColumnAmt>151655</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>151655</RelatedOrExemptFuncIncomeAmt>
      </TotalOthProgramServiceRevGrp>
      <TotalProgramServiceRevenueAmt>8748568</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>970772</TotalRevenueColumnAmt>
        <ExclusionAmt>970772</ExclusionAmt>
      </InvestmentIncomeGrp>
      <RoyaltiesRevenueGrp>
        <TotalRevenueColumnAmt>847421</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>847421</RelatedOrExemptFuncIncomeAmt>
      </RoyaltiesRevenueGrp>
      <GrossRentsGrp>
        <RealAmt>4800</RealAmt>
      </GrossRentsGrp>
      <LessRentalExpensesGrp>
        <RealAmt>0</RealAmt>
      </LessRentalExpensesGrp>
      <RentalIncomeOrLossGrp>
        <RealAmt>4800</RealAmt>
      </RentalIncomeOrLossGrp>
      <NetRentalIncomeOrLossGrp>
        <TotalRevenueColumnAmt>4800</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>4800</RelatedOrExemptFuncIncomeAmt>
      </NetRentalIncomeOrLossGrp>
      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>5475246</SecuritiesAmt>
      </GrossAmountSalesAssetsGrp>
      <LessCostOthBasisSalesExpnssGrp>
        <SecuritiesAmt>5398821</SecuritiesAmt>
      </LessCostOthBasisSalesExpnssGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>76425</SecuritiesAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>76425</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>76425</RelatedOrExemptFuncIncomeAmt>
      </NetGainOrLossInvestmentsGrp>
      <GrossSalesOfInventoryAmt>25400</GrossSalesOfInventoryAmt>
      <CostOfGoodsSoldAmt>0</CostOfGoodsSoldAmt>
      <NetIncomeOrLossGrp>
        <TotalRevenueColumnAmt>25400</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>25400</RelatedOrExemptFuncIncomeAmt>
      </NetIncomeOrLossGrp>
      <OtherRevenueMiscGrp>
        <Desc>INSURANCE PROCEEDS</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>1439450</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>1439450</RelatedOrExemptFuncIncomeAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueMiscGrp>
        <Desc>MISCELLANEOUS</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>30890</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>30890</RelatedOrExemptFuncIncomeAmt>
      </OtherRevenueMiscGrp>
      <OtherRevenueMiscGrp>
        <Desc>SUBSCRIPTIONS</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>5250</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>5250</RelatedOrExemptFuncIncomeAmt>
      </OtherRevenueMiscGrp>
      <MiscellaneousRevenueGrp>
        <TotalRevenueColumnAmt>90</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>90</RelatedOrExemptFuncIncomeAmt>
      </MiscellaneousRevenueGrp>
      <OtherRevenueTotalAmt>1475680</OtherRevenueTotalAmt>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>12317485</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>11135794</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>42500</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>970772</ExclusionAmt>
      </TotalRevenueGrp>
      <InfoInScheduleOPartIXInd>X</InfoInScheduleOPartIXInd>
      <GrantsToDomesticOrgsGrp>
        <TotalAmt>5000</TotalAmt>
        <ProgramServicesAmt>5000</ProgramServicesAmt>
      </GrantsToDomesticOrgsGrp>
      <ForeignGrantsGrp>
        <TotalAmt>47567</TotalAmt>
        <ProgramServicesAmt>47567</ProgramServicesAmt>
      </ForeignGrantsGrp>
      <CompCurrentOfcrDirectorsGrp>
        <TotalAmt>66350</TotalAmt>
        <ProgramServicesAmt>66350</ProgramServicesAmt>
      </CompCurrentOfcrDirectorsGrp>
      <FeesForServicesManagementGrp>
        <TotalAmt>4213740</TotalAmt>
        <ProgramServicesAmt>2751649</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1462091</ManagementAndGeneralAmt>
      </FeesForServicesManagementGrp>
      <FeesForSrvcInvstMgmntFeesGrp>
        <TotalAmt>6526</TotalAmt>
        <ManagementAndGeneralAmt>6526</ManagementAndGeneralAmt>
      </FeesForSrvcInvstMgmntFeesGrp>
      <FeesForServicesOtherGrp>
        <TotalAmt>1065482</TotalAmt>
        <ProgramServicesAmt>1042973</ProgramServicesAmt>
        <ManagementAndGeneralAmt>22509</ManagementAndGeneralAmt>
      </FeesForServicesOtherGrp>
      <AdvertisingGrp>
        <TotalAmt>52497</TotalAmt>
        <ProgramServicesAmt>49247</ProgramServicesAmt>
        <ManagementAndGeneralAmt>3250</ManagementAndGeneralAmt>
      </AdvertisingGrp>
      <OfficeExpensesGrp>
        <TotalAmt>99537</TotalAmt>
        <ProgramServicesAmt>23954</ProgramServicesAmt>
        <ManagementAndGeneralAmt>75583</ManagementAndGeneralAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>228114</TotalAmt>
        <ProgramServicesAmt>201006</ProgramServicesAmt>
        <ManagementAndGeneralAmt>27108</ManagementAndGeneralAmt>
      </InformationTechnologyGrp>
      <TravelGrp>
        <TotalAmt>28075</TotalAmt>
        <ProgramServicesAmt>13746</ProgramServicesAmt>
        <ManagementAndGeneralAmt>14329</ManagementAndGeneralAmt>
      </TravelGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>191625</TotalAmt>
        <ProgramServicesAmt>191075</ProgramServicesAmt>
        <ManagementAndGeneralAmt>550</ManagementAndGeneralAmt>
      </ConferencesMeetingsGrp>
      <DepreciationDepletionGrp>
        <TotalAmt>73887</TotalAmt>
        <ProgramServicesAmt>73887</ProgramServicesAmt>
      </DepreciationDepletionGrp>
      <InsuranceGrp>
        <TotalAmt>17593</TotalAmt>
        <ProgramServicesAmt>3346</ProgramServicesAmt>
        <ManagementAndGeneralAmt>14247</ManagementAndGeneralAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>STIPENDS</Desc>
        <TotalAmt>434223</TotalAmt>
        <ProgramServicesAmt>312724</ProgramServicesAmt>
        <ManagementAndGeneralAmt>121499</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>JOURNAL EDITORIAL EXPEN</Desc>
        <TotalAmt>397500</TotalAmt>
        <ProgramServicesAmt>397500</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>AWARDS</Desc>
        <TotalAmt>296444</TotalAmt>
        <ProgramServicesAmt>296054</ProgramServicesAmt>
        <ManagementAndGeneralAmt>390</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>ARTWORK/DESIGN</Desc>
        <TotalAmt>26366</TotalAmt>
        <ProgramServicesAmt>23985</ProgramServicesAmt>
        <ManagementAndGeneralAmt>2381</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <AllOtherExpensesGrp>
        <TotalAmt>29095</TotalAmt>
        <ProgramServicesAmt>18485</ProgramServicesAmt>
        <ManagementAndGeneralAmt>10610</ManagementAndGeneralAmt>
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      <TotalFunctionalExpensesGrp>
        <TotalAmt>7279621</TotalAmt>
        <ProgramServicesAmt>5518548</ProgramServicesAmt>
        <ManagementAndGeneralAmt>1761073</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
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      <CashNonInterestBearingGrp>
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        <EOYAmt>11220683</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>2375137</BOYAmt>
        <EOYAmt>3061642</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <AccountsReceivableGrp>
        <BOYAmt>1661509</BOYAmt>
        <EOYAmt>1374314</EOYAmt>
      </AccountsReceivableGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>384837</BOYAmt>
        <EOYAmt>792763</EOYAmt>
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      <InvestmentsPubTradedSecGrp>
        <BOYAmt>30738570</BOYAmt>
        <EOYAmt>31538427</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <IntangibleAssetsGrp>
        <BOYAmt>294886</BOYAmt>
        <EOYAmt>335334</EOYAmt>
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      <OtherAssetsTotalGrp>
        <BOYAmt>7229</BOYAmt>
        <EOYAmt>8738</EOYAmt>
      </OtherAssetsTotalGrp>
      <TotalAssetsGrp>
        <BOYAmt>42845265</BOYAmt>
        <EOYAmt>48331901</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>382244</BOYAmt>
        <EOYAmt>308467</EOYAmt>
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      <DeferredRevenueGrp>
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        <EOYAmt>689124</EOYAmt>
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      <TotalLiabilitiesGrp>
        <BOYAmt>958993</BOYAmt>
        <EOYAmt>997591</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>41688927</BOYAmt>
        <EOYAmt>46993166</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <DonorRestrictionNetAssetsGrp>
        <BOYAmt>197345</BOYAmt>
        <EOYAmt>341144</EOYAmt>
      </DonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>41886272</BOYAmt>
        <EOYAmt>47334310</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>42845265</BOYAmt>
        <EOYAmt>48331901</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <InfoInScheduleOPartXIInd>X</InfoInScheduleOPartXIInd>
      <ReconcilationRevenueExpnssAmt>5037864</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>446316</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>-36142</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
      <FSAuditedInd>1</FSAuditedInd>
      <FSAuditedBasisGrp>
        <SeparateBasisFinclStmtInd>X</SeparateBasisFinclStmtInd>
      </FSAuditedBasisGrp>
      <AuditCommitteeInd>1</AuditCommitteeInd>
      <FederalGrantAuditRequiredInd>0</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="RetDoc1039100001">
      <PubliclySupportedOrg509a2Ind>X</PubliclySupportedOrg509a2Ind>
      <GiftsGrantsContrisRcvd509Grp>
        <CurrentTaxYearMinus4YearsAmt>5347496</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>4494688</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>4889640</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>2991721</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>168419</CurrentTaxYearAmt>
        <TotalAmt>17891964</TotalAmt>
      </GiftsGrantsContrisRcvd509Grp>
      <GrossReceiptsAdmissionsGrp>
        <CurrentTaxYearMinus4YearsAmt>5368825</CurrentTaxYearMinus4YearsAmt>
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        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION IS EXEMPT FROM INCOME TAX UNDER SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE AND IS CLASSIFIED AS OTHER THAN A PRIVATE FOUNDATION. HOWEVER, INCOME FROM THE SALE OF ADVERTISING NOT DIRECTLY RELATED TO THE ORGANIZATION'S TAX-EXEMPT PURPOSE IS SUBJECT TO TAXATION AS UNRELATED BUSINESS INCOME. TOTAL UNRELATED BUSINESS INCOME TAX EXPENSE FOR THE YEAR ENDED DECEMBER 31, 2021, WAS $9,746. MANAGEMENT HAS REVIEWED ALL TAX POSITIONS RECOGNIZED IN PREVIOUSLY FILED TAX RETURNS IN THE U.S. FEDERAL AND STATE JURISDICTIONS AND THOSE EXPECTED TO BE TAKEN IN FUTURE TAX RETURNS. AS OF DECEMBER 31, 2021, THE ORGANIZATION HAD NO AMOUNTS RELATED TO UNRECOGNIZED INCOME TAX BENEFITS AND NO AMOUNTS RELATED TO ACCRUED INTEREST AND PENALTIES. THE ORGANIZATION DOES NOT ANTICIPATE ANY SIGNIFICANT CHANGES TO UNRECOGNIZED INCOME TAX BENEFITS OVER THE NEXT YEAR. THE ORGANIZATION IS CURRENTLY NOT UNDER AUDIT BY ANY FEDERAL OR STATE TAXING AUTHORITY.</ExplanationTxt>
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        <FormAndLineReferenceDesc>PART I, LINE 2:</FormAndLineReferenceDesc>
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        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>LINE 3 EXPLANATION - MDS IS IN CONTRACT WITH EXECUTIVE DIRECTOR, INC. TO PROVIDE ASSOCIATION MANAGEMENT SERVICES.</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERSHIP IN THE SOCIETY CONSISTS OF THE FOLLOWING CLASSES: (1) REGULAR MEMBERS; (2) JUNIOR MEMBERS; (3) WAIVED DUES MEMBERS; (4) HEALTH PROFESSIONAL (NON-PHYSICIAN) MEMBERS; (5) STUDENT MEMBERS; AND (6) HONORARY MEMBERS. REFER TO ARTICLE III SECTION 1 OF THE BYLAWS FOR MEMBERSHIP ELIGIBILITY.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>ARTICLE III SECTION 4 OF BYLAWS: ALL REGULAR, WAIVED DUES, AND HONORARY MEMBERS, WHOSE DUES ARE PAID IN FULL ARE ENTITLED TO VOTE AS PROVIDED IN THE BYLAWS FOR THE PURPOSE OF (A) ELECTING OFFICERS AND MEMBERS OF THE INTERNATIONAL EXECUTIVE COMMITTEE (I.E. DIRECTORS). ANY JUNIOR AND HEALTH PROFESSIONAL MEMBERS WHO OPT TO PAY THE FULL MEMBERSHIP DUES ARE ALSO ENTITLED TO VOTE.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>ALL MEMBERS, INCLUDING REGULAR, WAIVED DUES, AND HONORARY MEMBERS, WHOSE DUES ARE PAID IN FULL ARE ENTITLED TO VOTE AS PROVIDED IN THE BYLAWS FOR THE PURPOSE OF (B) VOTING ON PROPOSED AMENDMENTS TO THE BYLAWS; AND ( C) VOTING AT GENERAL BUSINESS MEETINGS. ANY MATTER TO BE DECIDED BY A VOTE OF THE MEMBERS SHALL, ESCEPT AS OTHERWISE PROVIDED IN THE BYLAWS OR IN THE NEW YORK NON-PROFIT CORPORATION LAW, BE DECIDED BY MAJORITY VOTE OF MEMBERS PRESENT IN PERSON OR BY PROXY. ANY JUNIOR AND HEALTH PROFESSIONAL MEMBERS WHO OPT TO PAY THE FULL MEMBERSHIP DUES ARE ALSO ENTITLED TO VOTE.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE OFFICERS APPOINTED THE MDS FINANCE COMMITTEE TO SERVE AS THE AUDIT COMMITTEE. THE AUDIT COMMITTEE REVIEWS THE FORM 990 PRIOR TO IT BEING FILED AND PROVIDES A RECOMMENDATION TO THE BOARD. AFTER THE FORM 990 IS APPROVED BY THE BOARD, IT IS SIGNED AND FILED WITH THE IRS.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>OFFICERS, INTERNATIONAL EXECUTIVE COMMITTEE MEMBERS, COMMITTEE AND TASK FORCE LEADERS ARE COVERED. IT IS THE POLICY OF THE MOVEMENT DISORDER SOCIETY (MDS) TO ENSURE BALANCE AND OBJECTIVITY IN ALL DECISIONS MADE BY THE SOCIETY.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 15B</FormAndLineReferenceDesc>
        <ExplanationTxt>MDS IS MANAGED BY EXECUTIVE DIRECTOR INC., A FOR-PROFIT MANAGEMENT COMPANY. MDS HAS NO OFFICAL EMPLOYEES BECAUSE ALL STAFF ASSIGNED TO MDS ARE EMPLOYEES OF THE MANAGEMENT COMPANY. MDS DOES NOT HAVE ANYONE THAT FITS THE DEFINITION OF A KEY EMPLOYEE. THE MDS OFFICERS AND INTERNATIONAL EXECUTIVE COMMITTEE DISCUSS AND APPROVE THE STIPEND AMOUNTS TAKING INTO CONSIDERATION THE STIPEND AMOUNTS PROVIDED AT RELATED ORGANIZATIONS. THOSE INDIVIDUALS DUE TO RECEIVE A STIPEND DO NOT PARTICIPATE IN THE DISCUSSION OR APPROVAL PROCESS.</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>MDS MAKES ITS GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY, AND FORM 990/990-T AVAILABLE FOR PUBLIC INSPECTION UPON REQUEST. ALL SUCH REQUESTS SHOULD BE IN WRITING TO THE SECRETARIAT OFFICE. THE BYLAWS ARE ALSO MADE AVAILABLE ON THE ORGANIZATIONS WEBSITE.</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>OTHER PROFESSIONAL FEES: PROGRAM SERVICE EXPENSES 1,042,973. MANAGEMENT AND GENERAL EXPENSES 22,509. FUNDRAISING EXPENSES 0. TOTAL EXPENSES 1,065,482.</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PART XI, LINE 9:</FormAndLineReferenceDesc>
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</Return>
