1. Department of Neurology, Hunan Provincial People's Hospital, Changsha, Hunan, China
2. Department of Neurology, Xiangya Hospital of Central South University, Changsha, Hunan, China
3. Department of Rehabilitation, Hunan Provincial People's Hospital, Changsha, Hunan, China
4. Department of Clinical Research and Teaching, The First Hospital of Changsha, Changsha, Hunan, China