1. Xuanwu Hospital, Capital Medical University; Department of Neurology; No. 45, Changchun Street Beijing Beijing China 100053
2. Henan Provincial People's Hospital of Zhengzhou University; Department of Neurology; Zhengzhou China
3. The First Affiliated Hospital of Henan University of Science and Technology; Department of Neurology; No. 24, Jinghua Road Luoyang Henan Province China 471003
4. West China Hospital, Sichuan University; Department of Neurology; No. 37, Guo Xue Xiang Chengdu Sichuan China 610041