1. Translational Research Center for Gastrointestinal Diseases (TARGID), University of Leuven, Leuven, Belgium
2. Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
3. Division of Gastroenterology and Hepatology, Department of Internal Medicine, Tokai University School of Medicine, Isehara, Japan
4. Division of Pharmacotherapeutics, Keio University Faculty of Pharmacy, Tokyo, Japan
5. Department of Diagnostic Pathology, School of Medicine, Showa University, Yokohama Northern Hospital, Kanagawa, Japan
6. Bioscience Division, TOSOH Corporation, Kanagawa, Japan
7. Department of Gastroenterology and Hepatology, International University of Health and Welfare, Mita Hospital, Tokyo, Japan