1 Department of Surgery, Odense University Hospital, Svendborg, Denmark; University of Southern Denmark, Faculty of Health Science, Department of Clinical research, Odense, Denmark.
2 Digestive Endoscopy Unit and Gastroenterology, Fondazione Poliambulanza, Brescia, Italy; Digestive Endoscopy Unit, Università Cattolica del Sacro Cuore, Rome, Italy.
3 Highland Medical Education Centre, Centre for Health Science, Raigmore Hospital, Inverness, Scotland, UK.
4 Department of Gastroenterology, Sheba Medical Center, Sackler School of Medicine, Tel-Aviv, Israel.
5 Department of Gastroenterology, Skåne University Hospital, Lund University, Malmö, Sweden.
6 Department of Social Medicine and Public Health, Pomeranian Medical University, Szczecin, Poland.