[Problems of birth control].
D000328:Adult; D001723:Birth Rate; D003267:Contraception; D003276:Contraceptives, Oral; D005193:Family Planning Services; D005260:Female; D005306:Fertilization; D006266:Health Education; D006801:Humans; D010298:Parity; D011247:Pregnancy
D003276:Contraceptives, Oral
Probleme der Geburtenregelung.