1. 1Department of Endocrinology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, China
2. 2Shandong Provincial Key Laboratory of Endocrinology and Lipid Metabolism, Jinan, Shandong Province, China
3. 3Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, China
4. 4Department of Endocrinology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong Province, China
5. 5Department of Endocrinology, Taian City Central Hospital, Taian, Shandong Province, China