[Unexplained bleeding during surgery].
D001778:Blood Coagulation Disorders; D005342:Fibrinolysis; D006470:Hemorrhage / Q000209:etiology*; D006487:Hemostasis; D006801:Humans; D011183:Postoperative Complications / Q000209:etiology; D013514:Surgical Procedures, Operative
Sangramento inexplicável durante a cirurgia.