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 Pharmacotherapeutics, Keio University Faculty of Pharmacy, Tokyo, Japan
4. Division of Gastroenterology and Hepatology, Department of Internal Medicine, Tokai University School of Medicine, Isehara, Japan