The R.C.G.P. oral contraception study.
D000328:Adult; D002318:Cardiovascular Diseases / Q000401:mortality; D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006801:Humans; D009369:Neoplasms / Q000401:mortality; D012306:Risk
D003276:Contraceptives, Oral