title: Postoperative thromboembolic disease and oral contraceptives.
mesh_terms: D003276:Contraceptives, Oral / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D011183:Postoperative Complications / Q000517:prevention & control*; D011300:Preoperative Care; D013923:Thromboembolism / Q000517:prevention & control*
chemical_list: D003276:Contraceptives, Oral