1. Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University Jiangsu Province Hospital Nanjing China
2. Department of Neurosurgery, Pukou Branch of Jiangsu People's Hospital Nanjing Pukou District Central Hospital Nanjing China
3. Department of Neurosurgery, Zhongda Hospital Southeast University Nanjing Jiangsu China
4. Department of Orthopaedics, Jinling Hospital Nanjing Medical University Nanjing China