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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE SOCIETY FOLLOWS THE FINANCIAL ACCOUNTING STANDARDS BOARD REQUIREMENTS FOR ACCOUNTING FOR UNCERTAIN TAX POSITIONS AND HAS DETERMINED THEY ARE NOT REQUIRED TO RECORD A LIABIITY FOR ANY SUCH POSITIONS.</ExplanationTxt>
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        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>PROGRAM SERVICES</TypeOfActivitiesConductedTxt>
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        <EmployeeCnt>0</EmployeeCnt>
        <TypeOfActivitiesConductedTxt>PROGRAM SERVICES</TypeOfActivitiesConductedTxt>
        <SpecificServicesProvidedTxt>ANNUAL MEETING SPONSORSHIPS FROM 2 COMPANIES TOTALING $18,000</SpecificServicesProvidedTxt>
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      <ContinuationTotalEmployeeCnt>0</ContinuationTotalEmployeeCnt>
      <TotalOfficeCnt>0</TotalOfficeCnt>
      <TotalEmployeeCnt>0</TotalEmployeeCnt>
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      <TotalSpentAmt>965903</TotalSpentAmt>
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      <InterestInForeignTrustInd>0</InterestInForeignTrustInd>
      <ForeignCorpOwnershipInd>0</ForeignCorpOwnershipInd>
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      <ForeignPartnershipInd>0</ForeignPartnershipInd>
      <BoycottCountriesInd>0</BoycottCountriesInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>SCHEDULE F, PART I, LINE 3 SUPPLEMENTARY INFORMATION</FormAndLineReferenceDesc>
        <ExplanationTxt>IN ADDITION TO THOSE ACTIVITIES DISCLOSED IN PART I OF SCHEDULE F, AS THE GLOBAL SOCIETY OF OF LEADING EXOSOMES AND MICROVESICLE RESEARCHERS, ISEV RECEIVES MEMBERSHIPS DUES AND MEETING/EVENT REGISTRATIONS FROM INDIVIDUALS WORLDWIDE.</ExplanationTxt>
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    </IRS990ScheduleF>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>ISEV HAS DELEGATED THE MANAGEMENT OF ITS DAILY OPERATIONS TO TALLEY MANAGEMENT GROUP, INC. (TMG) OF MT. ROYAL, NEW JERSEY. TMG IS A MANAGEMENT COMPANY WHICH MANAGES ALL ASPECTS OF ISEV'S OPERATIONS IN ACCORDANCE WITH ISEV'S BYLAWS AND POLICIES. OPERATIONS MAY INCLUDE, BUT ARE NOT LIMITED TO, ADMINISTRATION, MEMBERSHIP, FINANCE AND ACCOUNTING, CONVENTION/MEETING PLANNING, EDUCATION, MARKETING, INFORMATION TECHNOLOGY AND GOVERNMENT RELATIONS. TMG EMPLOYEES PROVIDE THESE SERVICES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>ISEV HAS ONE CLASS OF MEMBERSHIP, WHICH IS OPEN TO INDIVIDUALS THAT ARE PROFESSIONALLY, ACADEMICALLY, SCIENTIFICALLY, OR VOCATIONALLY INVOLVED IN THE FIELD OF EXTRACELLULAR RESEARCH AND THAT ARE INTERESTED IN THE STUDY AND ADVANCEMENT OF UNDERSTANDING AND SCIENCE IN THE FIELD.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE BOARD OF DIRECTORS, INCLUDING OFFICERS, ARE ELECTED BY THE MEMBERS AT OR IN CONNECTION WITH AN ANNUAL MEETING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>CHANGES TO THE BYLAWS MUST BE APPROVED BY THE MEMBERSHIP.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>FORM 990 IS PREPARED BY INDEPENDENT PUBLIC ACCOUNTANTS AND SUBMITTED TO ISEV'S MANAGEMENT COMPANY FOR INITIAL REVIEW. THE FORM IS THEN SUBMITTED TO THE BOARD OF DIRECTORS FOR REVIEW AND DISCUSSION PRIOR TO FILING.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
        <ExplanationTxt>DIRECTORS ARE REQUIRED TO SIGN A CONFLICT OF INTEREST STATEMENT AT THE BEGINNING OF THEIR TERMS AND ARE REMINDED TO DISCLOSE ANY CONFLICTS OF INTEREST AS THEY ARISE.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>ISEV MAKES ITS GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY AND FINANCIAL STATEMENTS AVAILABLE TO THE PUBLIC UPON REQUEST.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART IX, LINE 11G</FormAndLineReferenceDesc>
        <ExplanationTxt>EDITORIAL SERVICES: PROGRAM SERVICE EXPENSES 138,895. MANAGEMENT AND GENERAL EXPENSES 0. FUNDRAISING EXPENSES 0. TOTAL EXPENSES 138,895. OTHER PROFESSIONAL &amp; CONTRACTUAL SERVICES: PROGRAM SERVICE EXPENSES 56,846. MANAGEMENT AND GENERAL EXPENSES 23,314. FUNDRAISING EXPENSES 0. TOTAL EXPENSES 80,160.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART XII, LINE 2C:</FormAndLineReferenceDesc>
        <ExplanationTxt>ISEV'S BOARD OF DIRECTORS IS RESPONSIBLE FOR THE OVERSIGHT OF THE REVIEW AND SELECTION OF AN INDEPENDENT ACCOUNTANT. THIS PROCESS HAS NOT CHANGED FROM PRIOR YEARS.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>