1. Graduate School of Tianjin Medical University, Tianjin 300070, China
2. Department of Neurology, Tianjin Huanhu Hospital, Tianjin 300350, China
3. Tianjin Neurosurgical Institute, Tianjin Key Laboratory of Cerebrovascular and Neurodegenerative Diseases, Tianjin Huanhu Hospital, Tianjin 300350, China