title: Major pulmonary embolism.
mesh_terms: D000328:Adult; D000925:Anticoagulants / Q000627:therapeutic use; D003276:Contraceptives, Oral / Q000009:adverse effects; D005260:Female; D006801:Humans; D011655:Pulmonary Embolism / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000188:drug therapy; D011859:Radiography; D013924:Thrombophlebitis / Q000517:prevention & control
chemical_list: D000925:Anticoagulants; D003276:Contraceptives, Oral