1. Department of Anesthesiology and Pain Medicine; Tongji Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan China
2. Department of Anesthesiology; Liuzhou Worker's Hospital; the Fourth Affiliated Hospital of Guangxi Medical University; Liuzhou China
3. Department of Neurology; Liuzhou Traditional Chinese Medical Hospital; the Third Affiliated Hospital of Guangxi University of Chinese Medicine; Liuzhou China
4. School of Psychology; Social Work and Human Sciences; University of West London; London UK
5. Department of Neuroscience; Baylor College of Medicine; Houston Texas USA