1. Department of Endocrinology, The First Affiliated Hospital of Xi'an JiaoTong University, Xi'an, Shaanxi 710061, P.R. China
2. Department of Endocrinology, Shanxian Central Hospital, Shanxian, Shandong 274300, P.R. China
3. Department of Immunology and Rheumatology, The Second Affiliated Hospital of Xi'an JiaoTong University, Xi'an, Shaanxi 710004, P.R. China
4. Department of Endocrinology, Xi'an No. 3 Hospital, Xi'an, Shaanxi 710018, P.R. China
5. Department of Endocrinology and International Medical Center, The First Affiliated Hospital of Xi'an JiaoTong University, Xi'an, Shaanxi 710061, P.R. China