Affiliation: | 1. Endoscopic Center, Osaka Medical College Hospital, Takatsuki, Japan;2. Center for Clinical Research, Hamamatsu University School of Medicine, Hamamatsu, Japan;3. Department of Gastroenterology, Osaka City University Graduate School of Medicine School of Medicine, Osaka, Japan;4. Division of Digestive Endoscopy, Shiga University of Medical Science Hospital, Otsu, Japan;5. Department of Gastroenterology, Aichi Medical University, Aichi, Japan;6. Department of Endoscopy and Endoscopic Surgery, Gunma University Hospital, Meabashi, Japan;7. Department of Gastroenterology and Hepatology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, Japan;8. First Department of Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan;9. Second Department of Internal Medicine, Osaka Medical College, Takatsuki, Japan;10. Department of Internal Medicine, Saga Medical School, Saga, Japan |