1. Department of Research & Development Netherlands Comprehensive Cancer Organisation (IKNL) Utrecht The Netherlands
2. Department of Medical Oncology Cancer Center Amsterdam Amsterdam UMC University of Amsterdam Amsterdam The Netherlands
3. Department of Surgery Radboud University Medical Centre Nijmegen The Netherlands
4. Division of Medical Oncology Department of Internal Medicine GROW–School for Oncology and Developmental Biology Maastricht UMC+ Maastricht The Netherlands
5. Department of Radiotherapy Amsterdam UMC University of Amsterdam Amsterdam The Netherlands
6. Department of Surgery Amsterdam UMC University of Amsterdam Amsterdam The Netherlands
7. Radiotherapiegroep, location Deventer Deventer The Netherlands