1. Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250021, China
2. Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Jinan, Shandong 250021, China
3. Institute of Endocrinology and Metabolism, Shandong Academy of Clinical Medicine, Jinan, Shandong 250021, China
4. Department of Endocrinology, Jining No. 1 People’s Hospital, No. 6 Health Road, Rencheng, Jining 272011, China
5. Department of Endocrinology, Linyi People’s Hospital, Linyi, Shandong 276001, China
6. Department of Endocrinology, The Second Hospital of Shandong University, No. 247 Beiyuan Street, Jinan 250033, China