1. Department of Radiation Oncology, MAASTRO clinic, Maastricht, The Netherlands
2. CAPHRI School for Public Health and Primary Care, Maastricht University Medical Centre, Maastricht, The Netherlands
3. GROW School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, the Netherlands
4. Faculty of Medical Sciences, Radboud University Nijmegen, Nijmegen, The Netherlands
5. Department of Clinical Epidemiology and Medical Technology Assessment (KEMTA), Maastricht University Medical Centre, Maastricht, The Netherlands
6. Executive Board, Maastricht University Medical Centre, Maastricht, The Netherlands