1. Amsterdam UMC Location University of Amsterdam, Radiation Oncology, Amsterdam, The Netherlands
2. Cancer Center Amsterdam, Treatment and Quality of Life, Cancer Biology and Immunology, Amsterdam, The Netherlands
3. Department of Radiation Oncology, Erasmus MC Cancer Institute, University Medical Center Rotterdam, Rotterdam, The Netherlands
4. Department of Radiation Science and Technology, Delft University of Technology, Delft, The Netherlands
5. Department of Experimental Clinical Oncology, Aarhus University Hospital, Aarhus, Denmark