1. Department of Endocrinology of Qilu Hospital and Institute of Endocrinology and Metabolism, Shandong University, Jinan, China.
2. Department of Poisoning and Occupational Diseases, Qilu Hospital of Shandong University, Jinan, China.
3. Shantui Community Health Center, Jining, China.
4. Department of Endocrinology, Second People's Hospital of Jining, Jining, China.
5. Lukang Hospital of Jining, Jining, China.
6. China National Heavy Duty Truck Group Corporation Hospital, Jinan, China.
7. Department of Endocrinology, The Second Hospital of Shandong University, Jinan, Shandong, China.