1 Department of Anesthesiology, Second Affiliated Hospital of Shantou University Medical College, Shantou, 515041, People's Republic of China.
2 Department of Physiology, Shantou University Medical College, Shantou, 515041, People's Republic of China. Hexh@stu.edu.cn.
3 Department of Anesthesiology, Second Affiliated Hospital of Shantou University Medical College, Shantou, 515041, People's Republic of China. 10yfzhang1@stu.edu.cn.