1. Department of Neurology, State Key Laboratory of Complex Severe and Rare Diseases Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China
2. Department of Neurology General Hospital of Northern Theater Command Shenyang China
3. Department of Neurology the First Hospital of Jilin University Changchun China
4. Department of Neurology Army Medical Center of PLA Beijing China
5. Department of Neurology and Radiology General Hospital of Chinese People's Armed Police Forces Beijing China
6. Department of Radiology Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China
7. UCLA Department of Neurology Neurovascular Imaging Research Core and UCLA Comprehensive Stroke Center Los Angeles California USA
8. Department of Neurology Peking University First Hospital, Peking University Beijing China