1. Neurology Department, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
2. Neurology Department, Peking Union Medical College Hospital of Peking University, Beijing, China
3. Neurology Department, Beijing Xuanwu Hospital, Capital Medical University, Beijing, China
4. Neurology Department, Huashan Hospital, Fudan University, Shanghai, China
5. Neurology Department, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
6. Department of Neurology, University of California, San Francisco, CA, USA
7. Department of Epidemiology, University of California, San Francisco, CA, USA
8. Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong, China
9. Beijing Translational Medicine Research Center, Beijing, China