1. Department of Neurosurgery; Tianjin Medical University General Hospital; Heping District Tianjin China
2. Tianjin Neurological Institute; Tianjin China
3. Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System; Ministry of Education; Heping District Tianjin China
4. Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System; Heping District Tianjin China
5. Intensive Care Units; Tianjin Huanhu Hospital; Tianjin China
6. Department of Neurosurgery; The Second Hospital; Tianjin Medical University; Hexi District Tianjin China
7. Department of Neurology; Henry Ford Hospital; Detroit MI USA