1. Department of Psychosocial Research and Epidemiology Netherlands Cancer Institute Amsterdam The Netherlands
2. Department of Medical Oncology Netherlands Cancer Institute – Antoni van Leeuwenhoek Amsterdam The Netherlands
3. Research and Development Netherlands Comprehensive Cancer Organization Utrecht The Netherlands
4. Dutch AYA ‘Young & Cancer’ Care Network Utrecht The Netherlands
5. Department of Medical Oncology University Medical Center Utrecht The Netherlands
6. Department of Medical Oncology Radboud University Medical Center Nijmegen The Netherlands
7. Department of Medical Oncology Amsterdam University Medical Centers Amsterdam The Netherlands
8. Department of Medical Oncology Erasmus MC Cancer Institute, Erasmus University Medical Center Rotterdam The Netherlands
9. Department of Medical Oncology Leiden University Medical Center Leiden The Netherlands
10. Department of Internal Medicine GROW‐School of Oncology and Reproduction, Maastricht UMC+ Comprehensive Cancer Center Maastricht The Netherlands
11. Department of Medical Oncology University Medical Center Groningen Groningen The Netherlands
12. Department of Neurology Amsterdam UMC, Amsterdam University Medical Centers, Location VUmc Amsterdam The Netherlands
13. Department of Surgical Oncology Erasmus MC Cancer Institute, Erasmus University Medical Center Rotterdam The Netherlands