1 Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, 410008, Changsha, Hunan, P.R. China.
2 National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, 410008, Changsha, Hunan, P.R. China.
3 Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Centre for Diabetes, Shanghai Sixth People's Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 200233, Shanghai, P.R. China.
4 Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Clinical Centre for Diabetes, Shanghai Sixth People's Hospital affiliated to Shanghai Jiao Tong University School of Medicine, 200233, Shanghai, P.R. China. jingyan_1216@vip.163.com.
5 Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, 410008, Changsha, Hunan, P.R. China. xianghangluo@csu.edu.cn.
6 National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, 410008, Changsha, Hunan, P.R. China. xianghangluo@csu.edu.cn.
7 Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, 410008, Changsha, Hunan, P.R. China. ym2405@csu.edu.cn.
8 National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, 410008, Changsha, Hunan, P.R. China. ym2405@csu.edu.cn.