1. Department of Gastroenterology and Hepatology; Kyoto Prefectural University of Medicine; Kyoto Japan
2. Anti-Aging Medical Research Center; Faculty of Life and Medical Sciences; Doshisha University; Kyotanabe Japan
3. Center for Digestive and Liver Diseases; Nara City Hospital; Nara Japan
4. Department of Pathology; Nara City Hospital; Nara Japan