1. Department of Clinical Laboratory, Translational Medicine Center, Huaihe Hospital of Henan University, Kaifeng, Henan 475000, P.R. China
2. Department of Gastroenterology, People's Hospital of Xuchang, Xuchang, Henan 461000, P.R. China
3. Department of Nephrology, The First Affiliated Hospital of Henan University, Kaifeng, Henan 475000, P.R. China
4. Department of Dermatology, Huaihe Hospital of Henan University, Kaifeng, Henan 475000, P.R. China
5. Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450002, P.R. China
6. Department of Pathophysiology, Institute of Digestive Disease, Tongji University School of Medicine, Shanghai 200092, P.R. China