Contraception in the adolescent. Introduction.
D000028:Abortion, Induced; D000293:Adolescent; D000328:Adult; D001315:Australia; D001723:Birth Rate; D002648:Child; D003268:Contraception Behavior; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D011247:Pregnancy; D011253:Pregnancy in Adolescence; D012306:Risk; D012725:Sexual Behavior