1. Department of Encephalopathy, Gansu Provincial Hospital of TCM, Lanzhou, Gansu 730050, P.R. China
2. Department of Rheumatic Osteopathy, Affiliated Hospital of Gansu University of Traditional Chinese Medicine, Lanzhou, Gansu 730000, P.R. China
3. Department of Neurology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, Guangdong 510180, P.R. China