1. Department of Gastroenterology, the Affiliated Hospital of Medical School, Ningbo University, Ningbo, China.
2. Department of Biochemistry and Molecular Biology, and Zhejiang Key Laboratory of Pathophysiology, Medical School of Ningbo University, Ningbo, China.
3. Institute of Digestive Diseases of Ningbo University, the Affiliated Hospital of Ningbo University School of Medicine, Ningbo, China.