1. Stroke Center, Department of Neurology, The First Hospital of Jilin University, Chang Chun, China
2. Neuroscience Research Center, Department of Neurology, The First Hospital of Jilin University, Chang Chun, China
3. Department of Neurology, Songyuan Central Hospital, Songyuan, China
4. Department of Neurology, Tonghua Liuhe Hospital, Tonghua, China
5. Department of Neurology, Dongliao First People’s Hospital, Liaoyuan, China
6. Department of Neurology, Jilin Neuropsychiatric Hospital, Siping, China
7. Department of Neurology, Dongfeng County Hospital, Liaoyuan, China
8. Department of Neurosurgery, Liaoyuan City Central Hospital, Liaoyuan, China
9. Department of Neurology, Nongan People Hospital, Changchun, China
10. Department of Neurology, Dunhua City Hospital, Yanbian, China
11. Stroke Center, Department of Neurology, Siping Central People’s Hospital, Siping, China
12. Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, USA
13. Neurology, Radiology, Boston Medical Center, Boston University Chobanian and Avedisian School of Medicine, Boston, USA