Sexual experience of younger teenage girls seeking contraceptive assistance for the first time.
D000293:Adolescent; D000367:Age Factors; D002140:California; D003075:Coitus; D003151:Community Health Centers; D003267:Contraception / Q000379:methods; D003376:Counseling; D005006:Ethnicity; D005193:Family Planning Services; D005260:Female; D006801:Humans; D008297:Male; D012017:Referral and Consultation; D012736:Sex Education; D012725:Sexual Behavior; D012847:Single Person; D012959:Socioeconomic Factors