1. Department of Gastroenterology, The Hospital of 91876 Troops of Chinese People’s Liberation Army, Qinhuangdao, China
2. Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai, China
3. Shanghai Institute of Pancreatic Diseases, Shanghai, China
4. Department of Gastroenterology, Changhai Hospital, Naval Medical University, 168 Changhai Road, Shanghai 200433, China
5. National Key Laboratory of Immunity and Inflammation, Naval Medical University, Shanghai, China