No abstract available
Publication types
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Editorial
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Meta-Analysis
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Case-Control Studies
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Cohort Studies
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HIV Infections / complications*
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Humans
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Methadone / therapeutic use*
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Narcotics / therapeutic use*
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Prospective Studies
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Randomized Controlled Trials as Topic
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Risk-Taking*
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Substance Abuse, Intravenous / complications*
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Substance Abuse, Intravenous / drug therapy