OCs--update on usage, safety, and side effects.
D000293:Adolescent; D000328:Adult; D003132:Commerce; D003276:Contraceptives, Oral / Q000009:adverse effects / Q000600:supply & distribution; D005193:Family Planning Services; D005260:Female; D006801:Humans; D009369:Neoplasms / Q000139:chemically induced; D010594:Pharmacies; D012306:Risk; D012907:Smoking / Q000150:complications; D014652:Vascular Diseases / Q000139:chemically induced / Q000401:mortality
D003276:Contraceptives, Oral