1. Department of Gastroenterology, University Hospital of North Tees, Stockton-on-Tees, Cleveland, UK
2. CPO Piemonte, AOU Città della Salute e della Scienza, Torino, Italy
3. Gastroenterology Department, University Hospital Leuven, Leuven, Belgium
4. Department of Medicine I, Josephs-Hospital Warendorf, Academic Teaching Hospital, University of Münster, Warendorf, Germany
5. Department of Gastroenterology, Gloucestershire Royal Hospital, Gloucester, UK
6. Department of Gastroenterological Oncology, The Maria Sklodowska-Curie Memorial Cancer Centre and Institute of Oncology, and Medical Center for Postgraduate Education, Warsaw, Poland
7. Digestive Endoscopy Unit, Catholic University, Rome, Italy
8. Department of Health Management and Health Economics, University of Oslo, Oslo, Norway
9. Centre for Technology Enabled Research, Faculty of Health and Life Sciences, Coventry University, Coventry, UK
10. Nuovo Regina Margherita Hospital, Rome, Italy
11. Servicio de Gastroenterologia, Instituto Portugues de Oncologia Francisco Gentil, Porto, Portugal
12. Department of Gastroenterology and Hepatology, Institute for Clinical and Experimental Medicine, Prague, Czech Republic
13. Department. of Digestive Diseases, Hôpital Edouard Herriot, Lyon, France
14. Department of Transplantation Medicine, Oslo University Hospital, Oslo, Norway
15. Department of Gastroenterology and Hepatology, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands