1. Department of Neurology, Peking University First Hospital, Beijing, China
2. Centre for Epidemiological Studies and Clinical Trials, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
3. The George Institute for Global Health, Royal Prince Alfred Hospital and University of Sydney, Sydney, Australia
4. Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong, China
5. The George Institute China, Beijing, China
6. Department of Neurology, West China Hospital, Sichuan University, Chengdu, China
7. Xian Traffic University Medical College First Hospital, Xian, China
8. The First Hospital Affiliated to the Baotou Medical College, Baotou, China
9. General Hospital of Tianjin Medical University, Tianjin, China
10. The Second Affiliated Hospital of Guangzhou Medical College, Guangzhou, China
11. Xiangya Hospital of ***Centre-South University, Changsha, Hunan, China
12. Huashan Hospital, Shanghai, China