title: Age disparity between sex partners of men who have sex with men is only a marker of HIV risk.
authors.forename: John J
authors.initials: JJ
authors.lastname: Potterat
authors.forename: Devon D
authors.initials: DD
authors.lastname: Brewer
mesh_terms: D000328:Adult; D000367:Age Factors; D015658:HIV Infections / Q000635:transmission*; D018451:Homosexuality, Male / Q000706:statistics & numerical data; D006801:Humans; D008297:Male; D012307:Risk Factors; D012747:Sexual Partners; D055815:Young Adult