1. Robarts Research Institute, University of Western Ontario, London, Ontario, Canada
2. Department of Internal Medicine I, Kiel University, Kiel, Germany
3. Atlanta Gastroenterology Associates, Atlanta, Georgia, USA
4. Toronto Digestive Disease Associates, University of Toronto, Toronto, Ontario, Canada
5. Takeda International - UK Branch, London, United Kingdom
6. Takeda Pharmaceuticals International AG, Zurich, Switzerland
7. Department of Internal Medicine IV, University Hospital Jena, Friedrich Schiller University of Jena, Jena, Germany
8. Gastroenterology Outpatient Clinic, Heidelberg, Germany
9. Gastroenterology Practice, Minden, Germany