Affiliation: | 1. Digestive Center, Showa University Koto-Toyusu Hospital, Tokyo, Japan;2. Division of Medicine and Clinical Science, Department of Multidisciplinary Internal Medicine, Faculty of Medicine, Tottori University, Japan;3. Digestive Center, Showa University Koto-Toyusu Hospital, Tokyo, Japan Division of Medicine and Clinical Science, Department of Multidisciplinary Internal Medicine, Faculty of Medicine, Tottori University, Japan;4. Department of Gastroenterology and Hepatology, Nagasaki University Hospital, Nagasaki, Japan;5. Department of Pathology, Tottori University Hospital, Tottori, Japan |