1. Department of Endocrinology The Second Affiliated Hospital of Xi'an Jiaotong University Xi'an China
2. Department of Endocrinology and Second Department of Geriatrics The First Affiliated Hospital of Xi'an Jiaotong University Xi'an China
3. Department of Physiology and Pathophysiology, School of Basic Medical Sciences Xi'an Jiaotong University Health Science Center Xi'an China
4. Xi'an Jiaotong University Xi'an China
5. Department of Endocrinology Xi'an China
6. Department of Epidemiology and Statistics, School of Public Health, Medical College Zhejiang University Hangzhou China