1. From the Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University
2. China National Clinical Research Center for Neurological Diseases
3. Center of Stroke, Beijing Institute for Brain Disorders
4. Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease
5. Chaoyang Central Hospital, Liaoning Province, China
6. Savaid Medical School, University of the Chinese Academy of Sciences, Beijing, China