No abstract available
MeSH terms
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Acquired Immunodeficiency Syndrome / epidemiology*
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Acquired Immunodeficiency Syndrome / immunology
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Antibodies, Viral / analysis*
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Blood Donors
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Cytomegalovirus / immunology
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Cytomegalovirus Infections / epidemiology
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HIV / immunology*
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HIV Antibodies
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Hemophilia A / immunology*
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Herpesviridae Infections / epidemiology
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Herpesvirus 4, Human / immunology
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Homosexuality*
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Humans
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Hungary
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Male
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Retrospective Studies
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Sexually Transmitted Diseases / epidemiology
Substances
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Antibodies, Viral
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HIV Antibodies