No abstract available
Publication types
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Multicenter Study
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Research Support, N.I.H., Extramural
MeSH terms
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Acquired Immunodeficiency Syndrome / diagnosis
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Acquired Immunodeficiency Syndrome / epidemiology*
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Canada / epidemiology
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Cohort Studies
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Female
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Humans
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Male
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Research / organization & administration
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Research / statistics & numerical data
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Research Design*
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United States / epidemiology