Influence of contraceptive gestogen pills on sexual behaviour and the spread of gonorrhoea.
D000293:Adolescent; D000328:Adult; D003075:Coitus; D003273:Contraceptive Devices; D003276:Contraceptives, Oral; D006069:Gonorrhea / Q000453:epidemiology*; D006801:Humans; D008297:Male; D009092:Mucous Membrane / Q000187:drug effects; D012725:Sexual Behavior; D013334:Students
D003276:Contraceptives, Oral