Teenagers, sex and contraception.
D000029:Abortion, Legal; D000293:Adolescent; D000367:Age Factors; D001290:Attitude; D002140:California; D003267:Contraception; D005006:Ethnicity; D005193:Family Planning Services; D005260:Female; D006801:Humans; D008572:Menarche; D011247:Pregnancy; D012067:Religion; D012736:Sex Education; D012725:Sexual Behavior; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires