Department of Orthopaedic Surgery The Johns Hopkins University School of Medicine Baltimore MD 21205 USA;
Department of Endocrinology The First Affiliated Hospital of Nanchang University 330006 Nanchang Jiangxi China;
Department of Orthopedic Surgery The First Affiliated Hospital of Zhejiang Chinese Medical University 310006 Hangzhou Zhejiang Province China;
Department of Orthopedic Surgery The First Affiliated Hospital of Xinjiang Medical University 830054 Urumqi Xinjiang Uygur Autonomous Region China;
Endocrinology Research Center of Xiangya Hospital Central South University 410008 Changsha Hunan China;