Institution: | 1. Department of Anesthesiology, ShengJing Hospital, China Medical University, Shenyang 110004, Liaoning Province, China;Department of Anesthesiology, the Northern Hospital of China, Shenyang 110016, Liaoning Province, China 2. Department of Anesthesiology, ShengJing Hospital, China Medical University, Shenyang 110004, Liaoning Province, China 3. Department of Anesthesiology, the Northern Hospital of China, Shenyang 110016, Liaoning Province, China |