1. The First People’s Hospital of Shuangliu County; Department of Neurosurgery; Chengdu China 610041
2. Affiliated Hospital of Chengdu University; Emergency Department; Chengdu Sichuan China 610081
3. The Third People's Hospital of Chengdu; Department of Intensive Care Medicine; 82 Qinglong street Chengdu China 610031
4. The Second Affiliated Hospital of Chengdu, Chongqing Medical University; Department of Intensive Care Medicine; Chengdu Sichuan China
5. West China Hospital, Sichuan University; Cochrane China; No. 37, Guo Xue Xiang Chengdu Sichuan China 610041