1. Department of Gastroenterology, Hepatopancreatology and Digestive Oncology, Erasme University Hospital, Université Libre de Bruxelles, Belgium
2. Department of Gastroenterology, Saint-Pierre University Hospital, Université Libre de Bruxelles, Belgium
3. Department of Radiation-Oncology, Institut Jules Bordet, Université Libre de Bruxelles, Belgium
4. Department of Radiology, Institut Jules Bordet, Université Libre de Bruxelles, Belgium