Ethics statement
WEST
This study involving human participants was reviewed and approved by the Independent Ethics Committees of the hospitals and the Chinese Health Authority and was conducted according to the ethical standards of the institutional and/or national research committee and the Declaration of Helsinki. The patients provided their written informed consent to participate in this study. The list of Ethics Committee is the following:Neurology Department, Shanghai Jiao Tong University School of Medicine, Ruijin Hospital, Shanghai, ChinaNeurology Department, West China Hospital of Sichuan University, Chengdu, ChinaNeurology Department, Sun Yat-sen Memorial Hospital, Guangzhou, ChinaNeurology Department, The second affiliated hospital of Soochow University, Suzhou, ChinaNeurology Department, Shanghai General Hospital, Shanghai, ChinaNeurology Department, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, ChinaNeurology Department, Renmin Hospital of Wuhan University, Wuhan, ChinaNeurology Department, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, ChinaNeurology Department, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, ChinaNeurology Department, Sichuan Provincial People's Hospital, Chengdu, ChinaNeurology Department, Chongqing Three Gorges Central Hospital, Chongqing, ChinaNeurology Department, The Second Affiliated Hospital of Nanchang University, Nanchang, ChinaNeurology Department, Wenzhou Medical College-The First Affiliated Hospital, Wenzhou, ChinaNeurology Department, The First Hospital of Shanxi Medical University, Taiyuan, ChinaNeurology Department, Beijing Friendship Hospital, Beijing, ChinaNeurology Department, Baotou City Central Hospital, Baotou, ChinaNeurology Department, Tianjin Union Medicine Center, Tianjin, ChinaNeurology Department, The Third Hospital of Hebei Medical University, Shijiazhuang, ChinaNeurology Department, The First Bethune Hospital of Jilin University, Jilin, ChinaNeurology Department, The Affiliated Hospital of Guiyang Medical College, Guiyang, ChinaNeurology Department, Tongji Hospital of Tongji University, Shanghai, ChinaNeurology Department, Beijing Tiantan Hospital Affiliated to Capital Medical University, Beijing, ChinaNeurology Department, Qilu Hospital of Shandong University, Jinan, ChinaNeurology Department, The Second Affiliated Hospital of Zhejiang University, Hangzhou, ChinaNeurology Department, Fujian Medical University Union Hospital, Fuzhou, ChinaNeurology Department, Nanjing Drum Tower Hospital, Nanjing, ChinaNeurology Department, Shanghai Ninth People's Hospital, Shanghai, ChinaNeurology Department, The Third Xiangya Hospital of Central South University, Changsha, ChinaNeurology Department, Zhengzhou, ChinaThe First Affiliated Hospital of Zhengzhou UniversityNeurology Department, Daqing Oilfield General Hospital, Daqing, ChinaNeurology Department, The First Affiliated Hospital of Baotou Medical University, Baotou, ChinaNeurology Department, Guangzhou First People's Hospital, Guangzhou, China.