1. Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Renji Hospital, School of Medicine; Shanghai Jiao Tong University; Shanghai Institute of Digestive Disease; Shanghai China
2. Department of Gastroenterology and Hepatology; The First Affiliated Hospital of Wenzhou Medical University; Zhejiang Province China
3. Department of Digestive Endoscopy, Fujian Provincial Hospital; Provincial Clinic Medical College, Fujian Medical University; Fuzhou China
4. Department of Gastroenterology, Shanghai General Hospital; Shanghai Jiao-Tong University School of Medicine; Shanghai China
5. Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine; Shanghai Jiao Tong University; Shanghai Institute of Digestive Disease; Shanghai China