1. Department of Gastroenterology and Hepatology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
2. Department of Gastroenterology and Hepatology, St. Antonius Hospital Nieuwegein, Nieuwegein, The Netherlands
3. Department of Gastroenterology and Hepatology, University Hospitals Leuven, TARGID, Leuven, Belgium
4. Department of Gastroenterology, Porto Comprehensive Cancer Center, and RISE@CI-IPOP (Health Research Network), Porto Portugal
5. Early Cancer Institute, University of Cambridge and Department of Gastroenterology, Cambridge University Hospitals NHS Trust, Cambridge, UK
6. Department of Gastroenterology and Interventional Endoscopy, St. John of God Hospital, Regensburg, Germany
7. Department of Gastroenterology and Hepatology, Erasmus University Medical Center, Rotterdam, The Netherlands
8. Advanced Endoscopy Center Carlos Moreira da Silva, Department of Gastroenterology, Pedro Hispano Hospital, Matosinhos, Portugal
9. Division of Medicine, Department of Upper Gastrointestinal Diseases, Karolinska University Hospital and Karolinska Institute, Stockholm, Sweden
10. Department of Gastroenterology and Digestive Oncology, Cochin Hospital and University of Paris, Paris, France
11. Institut des Maladies de l'Appareil Digestif, IMAD, Centre hospitalier universitaire Hôtel-Dieu, Nantes, Nantes, France
12. Department of Gastroenterology and Hepatology, University Hospital of Geneva (HUG), Geneva, Switzerland
13. Endoscopy Unit, Department of Gastroenterology, Hospital Clínic of Barcelona, University of Barcelona, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Biomedical Research Network on Hepatic and Digestive Diseases (CIBEREHD), Barcelona, Spain
14. Department of Histopathology, University College London Hospital NHS Trust, London, UK
15. Division of Gastroenterology, Maimonides Medical Center, New York, New York, USA
16. Department of Gastroenterology, Wollongong Hospital, Wollongong, New South Wales, Australia
17. Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers location University of Amsterdam, Amsterdam Gastroenterology, Endocrinology and Metabolism, Cancer Center Amsterdam, Amsterdam, The Netherlands
18. Hepatogastroenterology Unit, Second Department of Propaedeutic Internal Medicine, Medical School, National and Kapodistrian University of Athens, Attikon University General Hospital, Athens, Greece