1. Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
2. Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
3. China National Clinical Research Center for Neurological Diseases, Beijing, China
4. Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
5. Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China