Sexual knowledge and attitudes of adolescents: relationship to contraceptive use.
D000028:Abortion, Induced; D000293:Adolescent; D001290:Attitude; D005193:Family Planning Services; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D008297:Male; D009034:Mother-Child Relations; D011247:Pregnancy; D011253:Pregnancy in Adolescence; D012736:Sex Education