1. KU Leuven Department of Pharmaceutical and Pharmacological Sciences; Leuven Belgium
2. KU Leuven Department of Clinical and Experimental Medicine; Leuven Belgium
3. Translational Gastroenterology Unit; Nuffield Department of Medicine; John Radcliffe Hospital; University of Oxford; Oxford UK
4. 1st Department of Medicine; Semmelweis University; Budapest Hungary
5. Robarts Clinical Trials Inc.; London ON Canada
6. Department of Gastroenterology and Hepatology; Academic Medical Centre; University of Amsterdam; Amsterdam The Netherlands
7. Division of Gastroenterology; University of California San Diego; La Jolla CA USA