No abstract available
MeSH terms
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Cytomegalovirus Infections / etiology
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Herpes Simplex / etiology
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Homosexuality*
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Humans
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Immunity, Cellular*
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Immunologic Deficiency Syndromes / etiology*
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Infections / etiology*
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Male
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Nitrites / administration & dosage
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Nitrites / adverse effects
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Pneumonia, Pneumocystis / etiology
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Risk
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Sarcoma, Kaposi / etiology*
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Sex Factors
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Substance-Related Disorders / complications
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Virus Diseases / etiology