title: Protecting the health of men who have sex with men.
mesh_terms: D001294:Attitude to Health; D002690:Chlamydia Infections / Q000453:epidemiology / Q000635:transmission*; D006069:Gonorrhea / Q000453:epidemiology / Q000635:transmission*; D018451:Homosexuality, Male; D006801:Humans; D008297:Male; D012725:Sexual Behavior / Q000523:psychology*; D013587:Syphilis / Q000453:epidemiology / Q000635:transmission*