Oral contraception.
D003277:Contraceptives, Oral, Combined / Q000008:administration & dosage; D003278:Contraceptives, Oral, Hormonal / Q000008:administration & dosage* / Q000009:adverse effects; D005260:Female; D006801:Humans; D011247:Pregnancy; D012306:Risk
D003277:Contraceptives, Oral, Combined; D003278:Contraceptives, Oral, Hormonal