1. Department of Neurosurgery, The Affiliated Wuxi No. 2 People's Hospital of Nanjing Medical University, Wuxi, Jiangsu 214000, P.R. China
2. Department of Neurosurgery, Medical School of Nantong University, Nantong University, Nantong, Jiangsu 226019, P.R. China
3. Department of Neurosurgery, Wuxi No. 2 People's Hospital, Affiliated Wuxi Clinical College of Nantong University, Wuxi, Jiangsu 214000, P.R. China