1 Department of Spine Surgery, Hunan Aerospace Hospital, Changsha, 410205, Hunan, China.
2 Musculoskeletal Tumor Center, Peking University People's Hospital, Peking University, Beijing 100044, China.
3 National Clinical Research Center for Metabolic Diseases, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, 139 Middle Renmin Road, Changsha, 410011, Hunan, China.