1. Department of Chronic Diseases Translational Research Center for Gastrointestinal Disorders (TARGID), Metabolism and Ageing (CHROMETA) KU Leuven Leuven Belgium
2. Division of Gastroenterology and Hepatology Leuven University Hospitals Leuven Belgium
3. Department of Internal Medicine & Clinical Nutrition Institute of Medicine Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
4. Rome Foundation Falls of Neuse Chapel Hill NC USA
5. Motility and Functional Gut Disorders Unit University Hospital Germans Trias i Pujol Badalona Spain
6. Centro de Investigación Biomédica en Red de enfermedades hepaticas y digestivas (CIBERehd) Barcelona Spain
7. Digestive System Research Unit University Hospital Vall d’Hebron Barcelona Spain
8. Department of Digestive Diseases and Internal Medicine University of Bologna St Orsola‐Malpighi Hospital Bologna Italy