1. Department of Orthopedics, Beijing Aerospace General Hospital, Beijing, China
2. Spinal Tumor Center, Department of Orthopedic Oncology, Shanghai Changzheng Hospital, Shanghai, China
3. School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
4. School of Medicine, Third Xiangya Hospital, Central South University, Changsha, China
5. Department of Spine Surgery, The Second Xiangya Hospital, Central South University, Changsha, China