1. Department of Endocrinology and Metabolism The Affiliated Hospital of Qingdao University Qingdao China
2. Department of Geriatrics Shanghai JiaoTong University Affiliated Sixth People's Hospital Shanghai China
3. Shanghai Key Laboratory of Diabetes Shanghai Institute for Diabetes Shanghai Clinical Medical Centre of Diabetes Shanghai Key Clinical Centre of Metabolic Diseases Department of Endocrinology and Metabolism Shanghai JiaoTong University Affiliated Sixth People's Hospital Shanghai China