Letter: Oral contraceptives in women over 34.
D000328:Adult; D000367:Age Factors; D003276:Contraceptives, Oral / Q000009:adverse effects*; D003327:Coronary Disease / Q000139:chemically induced; D005260:Female; D006801:Humans; D011247:Pregnancy; D013923:Thromboembolism / Q000139:chemically induced
D003276:Contraceptives, Oral