No abstract available
Keywords:
gastroenterology; homosexuality; microbiology.
MeSH terms
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Adult
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Aged
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Homosexuality, Male / statistics & numerical data*
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Humans
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Male
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Middle Aged
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Proctitis / diagnosis*
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Proctitis / epidemiology
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Proctitis / psychology
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Sexual Behavior
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Sexually Transmitted Diseases / diagnosis*
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Sexually Transmitted Diseases / epidemiology
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Sexually Transmitted Diseases / psychology
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Young Adult