1. Department of Gastroenterology – CHN, Pamplona, Spain
2. Department of Gastroenterology – South Tyneside NHS, South Tyneside, United Kingdom
3. Department of Gastroenterology – University of Navarra, Pamplona, Spain
4. Department of Hepatology and Gastroenterology – Saint-Antoine Hospital, Pierre et Marie Curie University & APHP, Paris, France
5. Department of Abdominal Surgery, Gastroenterology and Endoscopy – Pirogov Russia National Medical University, Moscow University Hospital, Moscow, Russia
6. Department of Gastroenterology – Gloucestershire Hospitals, Gloucester, United Kingdom
7. ManopH & CUF Oporto Hospitals, Porto, Portugal
8. Department of Gastroenterology – Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, United Kingdom
9. Department of Clinical Medicine – Tallaght Hospital, Trinity College, Dublin, Ireland
10. Digestive Endoscopy Unit – Royal Free Hampstead NHS Trust, London, United Kingdom
11. Institut Arnault Tzanck, Saint Laurent du Var, France
12. Centre Hospitalier Lyon Sud, Pierre Bénite, Lyon, France
13. Department of Internal Medicine 1 – Bergstrasse Medical Center, University Hospital Heidelberg, Heppenheim, Germany
14. Digestive Endoscopy Unit, Fondazione Policlinico Universitario Gemelli, Rome, Italy
15. Department of Gastroenterology – Skåne University Hospital, Lund University, Malmö, Sweden
16. Department of Gastroenterology – Allgemeines Krankenhaus Celle, Celle, Germany
17. Clinic for Internal Medicine, Bethesda Hospital Bergedorf, Hamburg, Germany