Affiliation: | 1. Senior Department of Gastroenterology, The First Medical Center of Chinese People''s Liberation Army General Hospital, Beijing, China;2. Department of Endoscopy Center, Peking University First Hospital, Beijing, China;3. Department of Gastroenterology, Peking University Third Hospital, Beijing, China;4. Department of Gastroenterology, Peking University People''s Hospital, Beijing, China;5. Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, State Key Laboratory for Oncogenes and Related Genes, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China;6. National Clinical Research Center for Digestive Diseases, Capital Medical University Affiliated Beijing Friendship Hospital, Beijing, China;7. Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin, China;8. Department of Gastroenterology, Shandong University Qilu Hospital, Jinan, China;9. Chinese People''s Liberation Army General Hospital, Beijing, China;10. Department of Gastroenterology, The Seventh Medical Center of Chinese PLA General Hospital, Beijing, China |