No abstract available
MeSH terms
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Acquired Immunodeficiency Syndrome / epidemiology*
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Acquired Immunodeficiency Syndrome / transmission*
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Coitus*
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Female
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HIV Infections / transmission*
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HIV Infections / virology*
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HIV-1 / isolation & purification*
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Humans
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Male
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Sexual Behavior / statistics & numerical data*
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Sexually Transmitted Diseases / transmission*