1. Queen Mary School, Nanchang University, Nanchang, Jiangxi 330031, P.R. China
2. Department of Endocrinology, The People's Hospital of Zhangqiu Area, Jinan, Shandong 250200, P.R. China
3. Department of Kidney Transplantation, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China
4. Department of Pathology, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China
5. Department of Gastroenterology, Research Institute of Digestive Diseases, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China