Safety of oral contraceptives.
D000328:Adult; D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006801:Humans; D010859:Pigmentation Disorders / Q000209:etiology*; D013923:Thromboembolism / Q000453:epidemiology* / Q000209:etiology*
D003276:Contraceptives, Oral