1. Department of Endocrinology, Zhongshan Hospital Xiamen University, Xiamen 361000, Fujian, China
2. Department of Paediatrics, Eighth People’s Hospital of Qingdao, Qingdao 266000, Shandong, China
3. Department of Imaging, Women and Children’s Hospital Qingdao University, Qingdao 266000, Shandong, China
4. Department of General Internal Medicine, Women and Children’s Hospital Qingdao University, Qingdao 266000, Shandong, China