1. Neuroscience Research Institute & Department of Neurobiology, Key Laboratory for Neuroscience, Ministry of Education & Ministry of Public Health, Health Science Center, Peking University, Beijing, China
2. Beijing Geriatric Hospital, Beijing, China
3. Department of Neurology, Peking University Third Hospital, Beijing, China
4. Department of Anesthesiology, Peking University Third Hospital, Beijing, China
5. Department of Neurology, Graduate School of Medicine, Juntendo University, Bunkyo-ku, Tokyo, Japan
6. Affiliated Rehabilitation Hospital of National Research Center for Rehabilitation Technical Aids, Beijing, China