Medical consequences of teenage sexuality.
D000028:Abortion, Induced; D000293:Adolescent; D000367:Age Factors; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008393:Marriage; D008423:Maternal Age; D009518:New York; D011247:Pregnancy; D011275:Pregnancy, Unwanted; D012725:Sexual Behavior; D012749:Sexually Transmitted Diseases / Q000453:epidemiology*