American teens: sexually active, sexually illiterate.
Wattleton
F
F
Planned Parenthood Federation of America, New York, NY 10019.
D000293:Adolescent; D005260:Female; D006801:Humans; D011247:Pregnancy; D011253:Pregnancy in Adolescence; D011606:Psychosexual Development; D012307:Risk Factors; D012736:Sex Education; D012725:Sexual Behavior