1. Department of Dermatology, Ghent University Hospital, Ghent, Belgium
2. Department of Pathology, Ghent University Hospital, Ghent, Belgium
3. Department of Radiation-Oncology and Experimental Cancer Research, Ghent University Hospital, Ghent, Belgium
4. Immuno-Oncology Network Ghent (ION Ghent), Ghent, Belgium
5. Cancer Research Institute Ghent (CRIG), Ghent, Belgium
6. Department of Gastroenterology and Digestive Oncology, Ghent University Hospital, Ghent, Belgium
7. Department of Gastrointestinal Surgery, Ghent University Hospital, Ghent, Belgium
8. Department of Pathology, Erasme Hospital, ULB, Brussels, Belgium
9. Department of Medical Oncology, Ghent University Hospital, Ghent, Belgium