1. Center for Digestive Diseases; Internal Medicine Center Eppendorf; Hamburg Germany
2. Intestinal Inflammatory Disease Unit, Department of Gastroenterology; University Clinical Hospital of Santiago de Compostela; Santiago de Compostela Spain
3. Department of Gastroenterology; Vrije University Medical Center; Amsterdam The Netherlands
4. Digestive System Service; University Hospital of Pontevedra Complex; Pontevedra Spain
5. Department of Pharmacology and Therapeutics, Faculty of Medicine; University of Porto; Porto Portugal
6. MedInUP, Centre for Drug Discovery and Innovative Medicines; University of Porto; Porto Portugal
7. Hepato-Gastroenterology; Cliniques Universitaires Saint-Luc; Brussels Belgium
8. Department of Gastroenterology; Institute of Translational Medicine; Liverpool UK