title: Adolescent contraceptors. Follow-up study.
mesh_terms: D000293:Adolescent; D003267:Contraception / Q000379:methods; D003276:Contraceptives, Oral; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D011247:Pregnancy; D013997:Time Factors
chemical_list: D003276:Contraceptives, Oral