1. Division of Gastroenterology, Yinzhou Hospital Affiliated to Medical School of Ningbo University, Ningbo 315000, China
2. Division of Gastroenterology, Affiliated Hospital of Hainan Medical College, Haikou 571000, China
3. Ningbo Pace Translational Medical Research Center, Beilun, Ningbo 315000, China
4. Department of Gastroenterology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310000, China