title: Men who have sex with men: continued challenges for preventing HIV infection and AIDS.
authors.forename: A R
authors.initials: AR
authors.lastname: Lifson
mesh_terms: D001727:Bisexuality; D015658:HIV Infections / Q000517:prevention & control*; D015497:HIV-1; D006716:Homosexuality; D006801:Humans; D008297:Male; D011634:Public Health / Q000592:standards*