1. Department of Surgery Radboud University Medical Centre Nijmegen The Netherlands
2. Department of Surgery Laurentius Hospital Roermond The Netherlands
3. Department of Surgery IJsselland Hospital Capelle aan de Ijssel The Netherlands
4. Department of Surgery University Hospitals Birmingham Birmingham UK
5. Department of Surgery The Netherlands Cancer Institute Amsterdam The Netherlands
6. Department of Radiology The Netherlands Cancer Institute Amsterdam The Netherlands
7. GROW School for Oncology and Developmental Biology Maastricht University Medical Centre Maastricht The Netherlands
8. Department of Regional Health Research University of Southern Denmark Odense Denmark