1. Division Gastroenterology-Hepatology; Department of Internal Medicine; NUTRIM School for Nutrition and Translational Research in Metabolism; Maastricht University Medical Center+; Maastricht The Netherlands
2. Centre for Digestive Diseases; Blizard Institute of Cell & Molecular Science; Wingate Institute of Neurogastroenterology; Barts and the London School of Medicine & Dentistry; Queen Mary University of London; London UK
3. Department Internal Medicine III; Medical University of Vienna; Vienna Austria
4. McMaster University; Hamilton ON Canada
5. Medical Intelligence, Early Clinical Development; Grünenthal GmBH; Aachen Germany
6. Department of Physiology and Pharmacology; Karolinska Institute; Stockholm Sweden