1. Department of Neurosurgery, First Clinical Medical College of Shanxi Medical University, Taiyuan, Shanxi Province, China
2. Department of Neurosurgery, The People’s Hospital of GuangXi Zhuang Autonomous Region, Nanning, Guanxi Province, China
3. Department of Anesthesiology, The People’s Hospital of GuangXi Zhuang Autonomous Region, Nanning, Guangxi Province, China