Thromboenbolism, oral contraceptives, and cigarettes.
D000328:Adult; D003276:Contraceptives, Oral / Q000009:adverse effects*; D005260:Female; D006801:Humans; D007494:Ireland; D011247:Pregnancy; D012907:Smoking / Q000150:complications*; D013923:Thromboembolism / Q000139:chemically induced* / Q000453:epidemiology / Q000401:mortality; D006113:United Kingdom; D014481:United States; D014852:Wales
D003276:Contraceptives, Oral