1. Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, China
2. Department of Neurosurgery Intensive Care Unit, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
3. Department of Neurosurgery, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China