1. Department of Intensive-Care Unit, Affiliated First Hospital, Jinan University, Guangzhou 510630, China
2. Department of Neurosurgery, Affiliated Shunde Hospital, Jinan University, Shunde, Foshan 528000, China
3. Department of Neurosurgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China
4. Department of Neurosurgery, Affiliated First Hospital, Jinan University, Guangzhou 510630, China
5. Department of Operating Room, Guangzhou Tianhe Longdong Hospital, Guangzhou 510520, China