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BACKGROUND Studies tracking trends in HIV prevalence and risk behavior among men who have sex with men (MSM) in China are rare. We report on 3 consecutive cross-sectional surveys measuring the(More)
BACKGROUND Multiple developments addressing health of people who inject drugs (PWIDs) in San Francisco were initiated from 2003 to 2012, including expanded health care coverage, syringe access, HIV(More)
BACKGROUND Social marketing interventions have been shown to both promote and change many health-related behaviours and issues. As the HIV epidemic continues to disproportionately affect MSM and(More)