Affiliation: | Current affiliations: Department of Gastroenterology (M.K., K.M.), Shizuoka General Hospital, Shizuoka, Japan, Department of Gastroenterology and Hepatology (T.I., F.I., A.S., T.T.), Tokyo Medical University, Tokyo, Japan, Department of Gastroenterology (Y.O., M.K.), Hamamatsu Rosai Hospital, Shizuoka, Japan, Department of Gastroenterology (K.Y.), Aichi Prefecture Cancer Center, Nagoya, Japan |