Affiliation: | 1.Department of Anaesthesiology, Ningxia Medical University, Yinchuan, Ningxia, China ;2.Department of Anaesthesiology, General Hospital of Ningxia Medical University, Shengli Street, Yinchuan, 750004, Ningxia, China ;3.Department of Key Laboratory of Cerebral Diseases, Ningxia Medical University, Yinchuan, Ningxia, China ; |