2nd Department of Internal Medicine, Osaka Medical College, Osaka Medical College - Endoscopic Center, 2nd Department of Internal Medicine, Osaka Medical College, Department of Gastroenterology, Osaka City University Graduate School of Medicine, Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Division of Endoscopy, Hirosaki University Hospital, Tohoku University Graduate School of Medicine - Division of Gastroenterology, Department of Gastroenterological Endoscopy, Tokyo Medical University Hospital, Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Department of Gastroenterology, Kagawa University Faculty of Medicine, Department of Gastroenterology, Japanese Red Cross Kyoto Daiichi Hospital, Department of Gastroenterology, Kagawa Prefectural Central Hospital, Department of Gastroenterology, Juntendo University School of Medicine, Department of Gastroenterology, Graduate School of Medicine, Nippon Medical School, Department of Gastroenterology, Faculty of Medicine, Oita University, Center for Clinical Research, Hamamatsu University School of Medicine, Department of Gastroenterology, Aichi Medical University Hospital, Division of Gastroenterology and Nephrology, Department of Multidisciplinary Internal Medicine, Faculty of Medicine, Tottori University, Department of Gastroenterology, Faculty of Medicine, Shimane University, Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Department of Gastroenterology and Hepatology, Keio University School of Medicine and Osaka Medical College

Kyoto University - Department of Therapeutic Oncology, Kitasato University - Department of Gastroenterology, National Institute of Public Health - Department of Health Promotion, National Cancer Center Hospital East - Department of Gastroenterology and Endoscopy, National Cancer Center Hospital - Endoscopy Division, Kyoto University - Department of Therapeutic Oncology, Kitasato University - Research and Development Center for New Frontiers, Hokkaido University Hospital - Division of Endoscopy, Kanazawa Medical Association, Tohoku University Graduate School of Medicine - Division of Gastroenterology, Shizuoka Cancer Center - Division of Endoscopy, National Hospital Organization (NHO) - Osaka National Hospital, Department of Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences - Department of Gastroenterology and Hepatology, Kanagawa Cancer Center - Department of Gastrointestinal Surgery, Showa Medical University - Division of Gastroenterology, Kumamoto Regional Medical Center - Department of Gastroenterology, St. Marianna University - Division of Gastroenterology and Hepatology, Keio University, Kawasaki Municipal Kawasaki Hospital - Department of Surgery, Tochigi Cancer Center - Department of Gastroenterology, Shizuoka Cancer Center - Department of Diagnostic Pathology, National Cancer Center, Japan - Exploratory Oncology Research and Clinical Trial Center, Kyoto Prefectural University of Medicine - Department of Molecular-Targeting Prevention, National Hospital Organization (NHO) - Kurihama Medical and Addiction Center, Clinical Research Unit and Independent