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      <FormerOfcrEmployeesListedInd>false</FormerOfcrEmployeesListedInd>
      <TotalCompGreaterThan150KInd>false</TotalCompGreaterThan150KInd>
      <CompensationFromOtherSrcsInd>false</CompensationFromOtherSrcsInd>
      <MembershipDuesAmt>273163</MembershipDuesAmt>
      <AllOtherContributionsAmt>3665</AllOtherContributionsAmt>
      <TotalContributionsAmt>276828</TotalContributionsAmt>
      <ProgramServiceRevenueGrp>
        <Desc>Annual Meeting</Desc>
        <BusinessCd>900099</BusinessCd>
        <TotalRevenueColumnAmt>523235</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>523235</RelatedOrExemptFuncIncomeAmt>
      </ProgramServiceRevenueGrp>
      <TotalProgramServiceRevenueAmt>523235</TotalProgramServiceRevenueAmt>
      <InvestmentIncomeGrp>
        <TotalRevenueColumnAmt>30786</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>30786</RelatedOrExemptFuncIncomeAmt>
      </InvestmentIncomeGrp>
      <RoyaltiesRevenueGrp>
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        <RelatedOrExemptFuncIncomeAmt>125508</RelatedOrExemptFuncIncomeAmt>
      </RoyaltiesRevenueGrp>
      <GrossAmountSalesAssetsGrp>
        <SecuritiesAmt>196957</SecuritiesAmt>
      </GrossAmountSalesAssetsGrp>
      <GainOrLossGrp>
        <SecuritiesAmt>196957</SecuritiesAmt>
      </GainOrLossGrp>
      <NetGainOrLossInvestmentsGrp>
        <TotalRevenueColumnAmt>196957</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>196957</RelatedOrExemptFuncIncomeAmt>
      </NetGainOrLossInvestmentsGrp>
      <NetIncmFromFundraisingEvtGrp>
        <TotalRevenueColumnAmt>0</TotalRevenueColumnAmt>
      </NetIncmFromFundraisingEvtGrp>
      <TotalRevenueGrp>
        <TotalRevenueColumnAmt>1153314</TotalRevenueColumnAmt>
        <RelatedOrExemptFuncIncomeAmt>876486</RelatedOrExemptFuncIncomeAmt>
        <UnrelatedBusinessRevenueAmt>0</UnrelatedBusinessRevenueAmt>
        <ExclusionAmt>0</ExclusionAmt>
      </TotalRevenueGrp>
      <GrantsToDomesticOrgsGrp>
        <TotalAmt>44681</TotalAmt>
        <ProgramServicesAmt>44681</ProgramServicesAmt>
      </GrantsToDomesticOrgsGrp>
      <OtherSalariesAndWagesGrp>
        <TotalAmt>14640</TotalAmt>
        <ProgramServicesAmt>14640</ProgramServicesAmt>
      </OtherSalariesAndWagesGrp>
      <PayrollTaxesGrp>
        <TotalAmt>1149</TotalAmt>
        <ProgramServicesAmt>1149</ProgramServicesAmt>
      </PayrollTaxesGrp>
      <FeesForServicesManagementGrp>
        <TotalAmt>220500</TotalAmt>
        <ManagementAndGeneralAmt>220500</ManagementAndGeneralAmt>
      </FeesForServicesManagementGrp>
      <FeesForServicesAccountingGrp>
        <TotalAmt>4775</TotalAmt>
        <ManagementAndGeneralAmt>4775</ManagementAndGeneralAmt>
      </FeesForServicesAccountingGrp>
      <FeesForSrvcInvstMgmntFeesGrp>
        <TotalAmt>7769</TotalAmt>
        <ManagementAndGeneralAmt>7769</ManagementAndGeneralAmt>
      </FeesForSrvcInvstMgmntFeesGrp>
      <OfficeExpensesGrp>
        <TotalAmt>8088</TotalAmt>
        <ManagementAndGeneralAmt>8088</ManagementAndGeneralAmt>
      </OfficeExpensesGrp>
      <InformationTechnologyGrp>
        <TotalAmt>176250</TotalAmt>
        <ProgramServicesAmt>138750</ProgramServicesAmt>
        <ManagementAndGeneralAmt>37500</ManagementAndGeneralAmt>
      </InformationTechnologyGrp>
      <ConferencesMeetingsGrp>
        <TotalAmt>294265</TotalAmt>
        <ProgramServicesAmt>285759</ProgramServicesAmt>
        <ManagementAndGeneralAmt>8506</ManagementAndGeneralAmt>
      </ConferencesMeetingsGrp>
      <InsuranceGrp>
        <TotalAmt>15960</TotalAmt>
        <ManagementAndGeneralAmt>15960</ManagementAndGeneralAmt>
      </InsuranceGrp>
      <OtherExpensesGrp>
        <Desc>Journal</Desc>
        <TotalAmt>78043</TotalAmt>
        <ProgramServicesAmt>78043</ProgramServicesAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Website</Desc>
        <TotalAmt>33999</TotalAmt>
        <ManagementAndGeneralAmt>33999</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <OtherExpensesGrp>
        <Desc>Credit Card Fees</Desc>
        <TotalAmt>23037</TotalAmt>
        <ManagementAndGeneralAmt>23037</ManagementAndGeneralAmt>
      </OtherExpensesGrp>
      <TotalFunctionalExpensesGrp>
        <TotalAmt>923156</TotalAmt>
        <ProgramServicesAmt>563022</ProgramServicesAmt>
        <ManagementAndGeneralAmt>360134</ManagementAndGeneralAmt>
        <FundraisingAmt>0</FundraisingAmt>
      </TotalFunctionalExpensesGrp>
      <CashNonInterestBearingGrp>
        <BOYAmt>92657</BOYAmt>
        <EOYAmt>326071</EOYAmt>
      </CashNonInterestBearingGrp>
      <SavingsAndTempCashInvstGrp>
        <BOYAmt>87666</BOYAmt>
        <EOYAmt>222278</EOYAmt>
      </SavingsAndTempCashInvstGrp>
      <AccountsReceivableGrp>
        <BOYAmt>53045</BOYAmt>
        <EOYAmt>250</EOYAmt>
      </AccountsReceivableGrp>
      <PrepaidExpensesDefrdChargesGrp>
        <BOYAmt>63000</BOYAmt>
        <EOYAmt>21271</EOYAmt>
      </PrepaidExpensesDefrdChargesGrp>
      <InvestmentsPubTradedSecGrp>
        <BOYAmt>2428235</BOYAmt>
        <EOYAmt>2517660</EOYAmt>
      </InvestmentsPubTradedSecGrp>
      <TotalAssetsGrp>
        <BOYAmt>2724603</BOYAmt>
        <EOYAmt>3087530</EOYAmt>
      </TotalAssetsGrp>
      <AccountsPayableAccrExpnssGrp>
        <BOYAmt>102093</BOYAmt>
        <EOYAmt>56723</EOYAmt>
      </AccountsPayableAccrExpnssGrp>
      <DeferredRevenueGrp>
        <BOYAmt>149245</BOYAmt>
        <EOYAmt>203925</EOYAmt>
      </DeferredRevenueGrp>
      <OtherLiabilitiesGrp>
        <EOYAmt>30500</EOYAmt>
      </OtherLiabilitiesGrp>
      <TotalLiabilitiesGrp>
        <BOYAmt>251338</BOYAmt>
        <EOYAmt>291148</EOYAmt>
      </TotalLiabilitiesGrp>
      <OrganizationFollowsFASB117Ind>X</OrganizationFollowsFASB117Ind>
      <NoDonorRestrictionNetAssetsGrp>
        <BOYAmt>2473265</BOYAmt>
        <EOYAmt>2796382</EOYAmt>
      </NoDonorRestrictionNetAssetsGrp>
      <TotalNetAssetsFundBalanceGrp>
        <BOYAmt>2473265</BOYAmt>
        <EOYAmt>2796382</EOYAmt>
      </TotalNetAssetsFundBalanceGrp>
      <TotLiabNetAssetsFundBalanceGrp>
        <BOYAmt>2724603</BOYAmt>
        <EOYAmt>3087530</EOYAmt>
      </TotLiabNetAssetsFundBalanceGrp>
      <ReconcilationRevenueExpnssAmt>230158</ReconcilationRevenueExpnssAmt>
      <NetUnrlzdGainsLossesInvstAmt>92959</NetUnrlzdGainsLossesInvstAmt>
      <OtherChangesInNetAssetsAmt>0</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>false</FSAuditedInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleA documentId="IRS990ScheduleA">
      <PubliclySupportedOrg509a2Ind>X</PubliclySupportedOrg509a2Ind>
      <GiftsGrantsContrisRcvd509Grp>
        <CurrentTaxYearMinus4YearsAmt>269467</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>252100</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>222390</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>37875</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>276828</CurrentTaxYearAmt>
        <TotalAmt>1058660</TotalAmt>
      </GiftsGrantsContrisRcvd509Grp>
      <GrossReceiptsAdmissionsGrp>
        <CurrentTaxYearMinus4YearsAmt>291462</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>544553</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>616208</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearAmt>523235</CurrentTaxYearAmt>
        <TotalAmt>1975458</TotalAmt>
      </GrossReceiptsAdmissionsGrp>
      <Total509Grp>
        <CurrentTaxYearMinus4YearsAmt>560929</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>796653</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>838598</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>37875</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>800063</CurrentTaxYearAmt>
        <TotalAmt>3034118</TotalAmt>
      </Total509Grp>
      <SubstAndDsqlfyPrsnsTotGrp>
        <CurrentTaxYearMinus4YearsAmt>0</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>0</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>0</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>0</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>0</CurrentTaxYearAmt>
        <TotalAmt>0</TotalAmt>
      </SubstAndDsqlfyPrsnsTotGrp>
      <PublicSupportTotal509Amt>3034118</PublicSupportTotal509Amt>
      <GrossInvestmentIncome509Grp>
        <CurrentTaxYearMinus4YearsAmt>160333</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>20183</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>139424</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>17769</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>156293</CurrentTaxYearAmt>
        <TotalAmt>494002</TotalAmt>
      </GrossInvestmentIncome509Grp>
      <InvestmentIncomeAndUBTIGrp>
        <CurrentTaxYearMinus4YearsAmt>160333</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>20183</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>139424</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>17769</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>156293</CurrentTaxYearAmt>
        <TotalAmt>494002</TotalAmt>
      </InvestmentIncomeAndUBTIGrp>
      <TotalSupportCalendarYearGrp>
        <CurrentTaxYearMinus4YearsAmt>721262</CurrentTaxYearMinus4YearsAmt>
        <CurrentTaxYearMinus3YearsAmt>816836</CurrentTaxYearMinus3YearsAmt>
        <CurrentTaxYearMinus2YearsAmt>978022</CurrentTaxYearMinus2YearsAmt>
        <CurrentTaxYearMinus1YearAmt>55644</CurrentTaxYearMinus1YearAmt>
        <CurrentTaxYearAmt>956356</CurrentTaxYearAmt>
        <TotalAmt>3528120</TotalAmt>
      </TotalSupportCalendarYearGrp>
      <PublicSupportCY509Pct>0.86000</PublicSupportCY509Pct>
      <PublicSupportPY509Pct>0.88760</PublicSupportPY509Pct>
      <InvestmentIncomeCYPct>0.14000</InvestmentIncomeCYPct>
      <InvestmentIncomePYPct>0.11000</InvestmentIncomePYPct>
      <ThirtyThrPctSuprtTestsCY509Ind>X</ThirtyThrPctSuprtTestsCY509Ind>
    </IRS990ScheduleA>
    <IRS990ScheduleD documentId="IRS990ScheduleD">
      <OtherLiabilitiesOrgGrp>
        <Desc>Other Payables</Desc>
        <Amt>30500</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>30500</TotalLiabilityAmt>
    </IRS990ScheduleD>
    <IRS990ScheduleI documentId="IRS990ScheduleI">
      <GrantRecordsMaintainedInd>true</GrantRecordsMaintainedInd>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>Indiana University School of Med</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>340 W 10th St</AddressLine1Txt>
          <CityNm>Indianapolis</CityNm>
          <StateAbbreviationCd>IN</StateAbbreviationCd>
          <ZIPCd>46202</ZIPCd>
        </USAddress>
        <IRCSectionDesc>501 c 3</IRCSectionDesc>
        <CashGrantAmt>14681</CashGrantAmt>
        <ValuationMethodUsedDesc>Cash</ValuationMethodUsedDesc>
        <PurposeOfGrantTxt>Medical Research</PurposeOfGrantTxt>
      </RecipientTable>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>Northwestern University</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>633 Clark Street</AddressLine1Txt>
          <CityNm>Evanston</CityNm>
          <StateAbbreviationCd>IL</StateAbbreviationCd>
          <ZIPCd>60208</ZIPCd>
        </USAddress>
        <IRCSectionDesc>501 c 3</IRCSectionDesc>
        <CashGrantAmt>30000</CashGrantAmt>
        <ValuationMethodUsedDesc>Cash</ValuationMethodUsedDesc>
      </RecipientTable>
    </IRS990ScheduleI>
    <IRS990ScheduleO documentId="IRS990ScheduleO">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Management duties delegation Part VI line 3</FormAndLineReferenceDesc>
        <ExplanationTxt>LP etc provides management support</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Members or stockholder classes and rights Part VI line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>Organization has members who pay annual membership dues.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Member election for additional members Part VI line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>Members elect other members to the governing body.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990 governing body review Part VI line 11</FormAndLineReferenceDesc>
        <ExplanationTxt>The form 990 is reviewed by the governing body before it is filed</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Governing documents etc available to public Part VI line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>Association makes its governing documents, policies and financial information available upon request.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>