[1] Osaki Citizen Hospital,Department of Gastroenterology
[2] Nihon University School of Medicine,Division of Gastroenterology and Hepatology, Department of Medicine
[3] Saku Central Hospital Advanced Care Center,Division of Endoscopy
[4] Shizuoka Cancer Center,Division of Endoscopy
[5] Hiroshima University Graduate School of Biomedical Sciences,Department of Gastroenterology and Metabolism
[6] Toranomon Hospital,Department of Gastroenterology
[7] Hiroshima City Hospital,Department of Endoscopy
[8] Tohoku University Graduate School of Medicine,Department of Gastroenterology
[9] Niigata Prefectural Central Hospital,Department of Internal Medicine
[10] Kitakyushu Municipal Medical Center,Department of Gastroenterology
[11] Toyama Prefectural Central Hospital,Department of Internal Medicine
[12] Nagasaki University Hospital,Department of Gastroenterology and Hepatology
[13] Saga Medical School,Department of Internal Medicine and Gastrointestinal Endoscopy
[14] Nara Medical University,Department of Gastroenterology and Endocrinology and Metabolism
[15] Kyoto Prefectural University of Medicine,Department of Gastroenterology and Hepatology
[16] Gifu University Graduate School of Medicine,Department of Gastroenterology
[17] Shinshu University School of Medicine,Department of Gastroenterology
[18] Kyoto Daiichi Hospital,Department of Gastroenterology and Hepatology, Japanese Red Cross Society
[19] Akita City Hospital,Department of Gastroenterology
[20] Fukui Prefectural Hospital,Division of Gastroenterology
[21] Tohoku Medical Megabank Organization,Department of Preventive Medicine and Epidemiology