Department of Anesthesiology;
Peking Union Medical College Hospital;
Peking Union Medical College and Chinese Academy of Medical Sciences;
Beijing 100730;
China;
Department of Anesthesiology;
State Key Laboratory of Complex Severe and Rare Diseases;
Peking Union Medical College Hospital;
Peking Union Medical College and Chinese Academy of Medical Sciences;
Beijing 100730;
China;
Factor XI deficiency; Thromboelastography; Transfusion; Intraoperative; Coagulopathy; Case report;