Sex surveys and drug users.
Goldberg
D
D
Frischer
M
M
Green
S T
ST
D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D012606:Scotland / Q000453:epidemiology; D012725:Sexual Behavior; D015819:Substance Abuse, Intravenous / Q000453:epidemiology