Age and risk of HIV infection in men who have sex with men.
Mansergh
G
G
Marks
G
G
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D015658:HIV Infections / Q000453:epidemiology*; D018451:Homosexuality, Male; D006801:Humans; D008297:Male; D008875:Middle Aged; D012107:Research Design; D012309:Risk-Taking; D015983:Selection Bias; D012725:Sexual Behavior