1. Research Institute of Digestive Diseases, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
2. Graduate Program, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, P.R. China
3. Institute of Basic Medical Sciences, Nanchang University, Nanchang, Jiangxi, P.R. China
4. Departments of Pathology and Laboratory Medicine, Boston University School of Medicine, Boston, MA 02118, USA
5. Department of Biochemistry, Boston University School of Medicine, Boston, MA 02118, USA