title: Opportunities to improve AIDS prevention practice among men who have sex with men.
authors: Graduate School of Public Health, Pittsburgh, Pennsylvania 15261, USA. rstall@pitt.edu
authors: Ron
authors: R
authors: Stall
mesh_terms: D015658:HIV Infections / Q000453:epidemiology / Q000517:prevention & control* / Q000635:transmission; D006293:Health Promotion; D018451:Homosexuality, Male; D006801:Humans; D008297:Male; D040242:Risk Reduction Behavior; D014481:United States / Q000453:epidemiology