1. Department of Gastroenterology and Hepatology, Radboud University Medical Center, Nijmegen, the Netherlands
2. Department of Surgery, Radboud University Medical Center, Nijmegen, the Netherlands
3. Department of Pathology, Radboud University Medical Center, Nijmegen, the Netherlands
4. Department of Gastroenterology and Hepatology, Catharina Hospital, Eindhoven, the Netherlands and GROW: School of Oncology and Developmental Biology, Maastricht University, Maastricht, the Netherlands
5. Department of Medical Oncology, Cancer Center Amsterdam, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
6. Department of Radiation Oncology, Radboud University Medical Center, Nijmegen, the Netherlands
7. Department of Research & Development, Netherlands Comprehensive Cancer Organization, Utrecht, the Netherlands