1. Department of Gastroenterology and Hepatology, Sichuan Academy of Medical Sciences & Sichuan Provincial Peopleʼs Hospital, Chengdu, Sichuan Province, China
2. School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan Province, China
3. Department of Pathology, Sichuan Academy of Medical Sciences & Sichuan Provincial Peopleʼs Hospital, Chengdu, Sichuan Province, China