The "pill", promiscuity, and venereal disease.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D003273:Contraceptive Devices; D003276:Contraceptives, Oral; D005191:Family Characteristics; D005260:Female; D006069:Gonorrhea / Q000453:epidemiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012725:Sexual Behavior; D012923:Social Class; D014852:Wales
D003276:Contraceptives, Oral