Affiliation: | 1. Department of Gastroenterology, Chuno Kosei Hospital, Seki, Japan;2. Department of Gastroenterology/Internal Medicine, Gifu University Graduate School of Medicine, Gifu, Japan;3. Department of Gastroenterology/Internal Medicine, Gifu University Graduate School of Medicine, Gifu, Japan Division for Regional Cancer Control, Gifu University Graduate School of Medicine, Gifu, Japan |