1. Department of Surgery Erasmus MC Rotterdam The Netherlands
2. Department of Pathology University Medical Center Utrecht Utrecht The Netherlands
3. Department of Research and Development Netherlands Comprehensive Cancer Organisation Utrecht The Netherlands
4. Department of Health Technology and Services Research, Technical Medical Centre University of Twente Enschede The Netherlands
5. Department of Surgery Catharina Hospital Eindhoven Eindhoven The Netherlands
6. Department of Surgery St. Antonius Hospital Nieuwegein The Netherlands
7. Department of Surgery University Medical Center Utrecht Utrecht The Netherlands