1. Department of Endocrinology and Metabolism, Hunan Provincial Key Laboratory of Metabolic Bone Diseases, National Clinical Research Center for Metabolic Disease, The Second Xiang‑Ya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
2. Department of Pathology, The Xiangya Stomatological Hospital, Central South University, Changsha, Hunan 410011, P.R. China
3. Department of Geriatrics, The Second Xiang‑Ya Hospital, Central South University, Changsha, Hunan 410011, P.R. China
4. Department of Pathology, The Second Xiang‑Ya Hospital, Central South University, Changsha, Hunan 410011, P.R. China