1. Department of Neurology, Beijing Tiantan hospital, Capital Medical University, Beijing, China
2. China National Clinical Research Centre for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
3. Beijing Key laboratory of Translational Medicine for Cerebrovascular Disease, Gurukula Kangri Vishwavidyalaya, Beijing, China
4. Center of Stroke, Beijing Institute for Brain Disorders, Beijing, Chin