Letter: Thromboembolism and oral contraceptives.
D003276:Contraceptives, Oral / Q000009:adverse effects*; D004958:Estradiol / Q000494:pharmacology; D004997:Ethinyl Estradiol / Q000494:pharmacology; D005260:Female; D005342:Fibrinolysis / Q000187:drug effects; D006801:Humans; D013923:Thromboembolism / Q000139:chemically induced*
D003276:Contraceptives, Oral; D004997:Ethinyl Estradiol; D004958:Estradiol