1. Department of Endocrinology and Metabolism, Laboratory of Diabetes and Metabolism Research, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
2. Department of Geriatrics, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
3. West China School of Medicine, Sichuan University, Chengdu, Sichuan 610041, China
4. Meishan Center for Disease Control and Prevention, Meishan, Sichuan 620000, China