1. Department of Gastroenterology, Hospital de Cascais, Portugal
2. Department of Pediatrics, Gastroenterology and Nutrition, Jagiellonian University Medical College, Krakow, Poland
3. Division of Gastroenterology, School of Health Sciences and University Hospital of Ioannina, Greece
4. Department of Gastroenterology & Hepatology, Erasmus Medical Center, Rotterdam, The Netherlands
5. Department of Gastroenterology and Hepatology, NanJing University Affiliated Jinling Hospital, China
6. Department of Gastroenterology and Hepatology, University Hospital Zurich, Switzerland and Center for Gastroenterology and Hepatology, Zürich, Switzerland
7. Gastroenterology Outpatients Clinic, Leipzig, Germany
8. Department of Medicine, Mater Dei Hospital, Msida, Malta
9. Department of Surgery, Oncology and Gastroenterology – DiSCOG, University of Padua, Padova, Italy
10. Gastroenterology Unit, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP) – Universidad Autónoma de Madrid, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Madrid, Spain
11. Department of Gastroenterology, Royal Victoria Infirmary, Newcastle Upon Tyne, UK
12. Department of Gastroenterology, Hospital Prof. Doutor Fernando Fonseca, Amadora, Portugal
13. Department of Gastroenterology, Venizeleio General Hospital, Heraklion, Greece
14. Digestive Diseases Institute, Shaare Zedek Medical Center, Jerusalem, Israel
15. Hospital Universitario de Canarias – Tenerife, Spain