Affiliation: | 1.Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, 1-757 Asahimachi-dori, Niigata, 951-8510, Japan ;2.Department of Neuroscience of Disease, Brain Research Institute, Niigata University, Niigata, 951-8585, Japan ;3.Division of Digestive and General Surgery, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, 951-8510, Japan ; |