What to tell your clients about oral-sex risk.
D005843:Geography; D015658:HIV Infections / Q000453:epidemiology / Q000635:transmission*; D006292:Health Priorities; D018451:Homosexuality, Male; D006801:Humans; D008297:Male; D009055:Mouth; D011369:Professional-Patient Relations; D012306:Risk; D014481:United States / Q000453:epidemiology