1. Department of Surgery, Diakonessenhuis Utrecht, Utrecht, The Netherlands
2. Department of Surgical Oncology, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
3. Julius Centre for Health Sciences and Primary Care, University Medical Centre Utrecht, Utrecht, The Netherlands
4. Department of Surgery, University Medical Centre Utrecht, Utrecht, The Netherlands
5. Department of Pathology, Diakonessenhuis Utrecht, Utrecht, The Netherlands
6. Department of Radiotherapy, University Medical Centre Utrecht, Utrecht, The Netherlands