Premarital sexual experience among adolescent women--United States, 1970-1988.
D000293:Adolescent; D006801:Humans; D012307:Risk Factors; D012725:Sexual Behavior; D012749:Sexually Transmitted Diseases / Q000453:epidemiology; D012847:Single Person / Q000706:statistics & numerical data*; D011795:Surveys and Questionnaires; D014481:United States / Q000453:epidemiology