1. Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, Tianjin, China
2. Tianjin Neurological Institute, Key Laboratory of Post-Neuroinjury Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin 300052, Tianjin, China
3. Tianjin Medical University, Tianjin 300070, Tianjin, China