Specific Sex Drug Combinations Contribute to the Majority of Recent HIV Seroconversions Among MSM in the MACS

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THE MULTICENTER AIDS COHORT STUDY: RATIONALE, ORGANIZATION, AND SELECTED CHARACTERISTICS OF THE PARTICIPANTS

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Alcohol use, drug use and alcohol‐related problems among men who have sex with men: the Urban Men's Health Study

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Drug Use, High-Risk Sex Behaviors, and Increased Risk for Recent HIV Infection among Men who Have Sex with Men in Chicago and Los Angeles

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Methamphetamine and sildenafil (Viagra) use are linked to unprotected receptive and insertive anal sex, respectively, in a sample of men who have sex with men

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The Impact of T-ACASI Interviewing on Reported Drug Use among Men Who Have Sex with Men

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Poly-club-drug use among gay and bisexual men: A longitudinal analysis

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Relationship of Amphetamine and Other Substance Use to Unprotected Intercourse Among Young Men Who Have Sex With Men

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Viagra, Methamphetamine, and HIV Risk: Results From a Probability Sample of MSM, San Francisco

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Amphetamine Use and Sexual Risk Among Men Who Have Sex With Men: Results From the National HIV Behavioral Surveillance Study—New York City

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Factors Associated With Recent Sildenafil (Viagra) Use Among Men Who Have Sex With Men in the United States

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Risky sexual behaviour in context: qualitative results from an investigation into risk factors for seroconversion among gay men who test for HIV

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