1. Department of Surgery; Diakonessenhuis Utrecht; the Netherlands
2. Department of Radiology; University Medical Center Utrecht; the Netherlands
3. Department of Surgery; Albert Schweitzer Hospital; Dordrecht the Netherlands
4. Department of Epidemiology; Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht; Utrecht the Netherlands
5. Department of Medical Oncology; Antoni Van Leeuwenhoek Hospital - Netherlands Cancer Institute; Amsterdam the Netherlands
6. Department of Surgery; Antoni Van Leeuwenhoek Hospital - Netherlands Cancer Institute; Amsterdam the Netherlands
7. Department of Research; Netherlands Comprehensive Cancer Organization (IKNL); Utrecht the Netherlands