1. Department of Spine SurgeryThe First Affiliated Hospital of Anhui Medical University No. 218 Jixi Road, Shushan District Hefei Anhui Province 230031 China
2. Department of Orthopedic SurgeryLUAN Affiliated Houspital of AnHui Medical University No. 21 Wanxi Road, Jinan District Luan Anhui Province 237005 China
3. Department Emergency SurgeryANHUI No. 2 Provincial People's Housptial No.1868 Tangshan Road, Luyang District Hefei Anhui Province 230001 China