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        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>ISSVA HAS IMPLEMENTED ACCOUNTING FOR UNCERTAINTY IN INCOME TAXES IN ACCORDANCE WITH U.S. GAAP. THIS STANDARD PRESCRIBES A RECOGNITION THRESHOLD AND MEASUREMENT ATTRIBUTE FOR FINANCIAL STATEMENT RECOGNITION AND MEASUREMENT OF A TAX POSITION TAKEN OR EXPECTED TO BE TAKEN IN A TAX RETURN AND ALSO PROVIDES GUIDANCE ON VARIOUS RELATED MATTERS SUCH AS DERECOGNIZING, INTEREST, PENALTIES AND DISCLOSURES REQUIRED. MANAGEMENT OF ISSVA EVALUATES THE UNCERTAIN TAX POSITIONS TAKEN, IF ANY, AND CONSULTS WITH OUTSIDE COUNSEL AS DEEMED NECESSARY. ISSVA RECOGNIZES INTEREST AND PENALTIES, IF ANY, RELATED TO UNRECOGNIZED TAX LIABILITIES IN INCOME TAX EXPENSE. IN MANAGEMENT'S OPINION, ISSVA HAS NOT TAKEN ANY UNCERTAIN TAX POSITIONS, AND ACCORDINGLY, HAS NOT REPORTED A CORRESPONDING LIABILITY IN ISSVA'S FINANCIAL STATEMENTS.</ExplanationTxt>
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        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>ISSVA CONTRACTS WITH EXECUTIVE DIRECTOR INC. (A FOR-PROFIT MANAGEMENT COMPANY) TO PROVIDE OFFICE FACILITIES, MANAGEMENT, RECORD KEEPING, ACCOUNTING, STORAGE AND OTHER SIGNIFICANT SERVICES, PLUS RELATED OVERHEAD COSTS.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 4</FormAndLineReferenceDesc>
        <ExplanationTxt>DURING 2022 THE BYLAWS WERE AMENDED THAT THE BOARD OF THE CORPORATION SHALL CONSIST OF THE OFFICERS, THE CHAIR OF THE SCIENTIFIC COMMITTEE, THE EDITOR-IN-CHIEF OF ISSVA'S OFFICIAL JOURNAL AND UP TO 5 ADDITONAL AT-LARGE MEMBERS. PRIOR TO EACH ELECTION, THE BOARD WILL DETERMINE THE NUMBER OF AT-LARGE MEMBERS. THE OFFICERS SHALL INCLUDE THE PRESIDENT, PRESIDENT-ELECT, PAST PRESIDENT, VICE-PRESIDENT, SECRETARY AND TREASURER.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MEMBERS OF THE ORGANIZATION VOTE ON THE BOARD.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MEMBERS OF THE ORGANIZATION VOTE ON GOVERNANCE DECISIONS.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM 990 IS REVIEWED BY THE BOARD BEFORE IT IS FILED.</ExplanationTxt>
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      <SupplementalInformationDetail>
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