1. Department of Research and Development, Netherlands Comprehensive Cancer Organisation, Utrecht, The Netherlands
2. Netherlands Association for Palliative Care (PZNL), Utrecht, The Netherlands
3. Department of Health Technology and Services Research, University of Twente, Technical Medical Centre, Enschede, The Netherlands
4. Department of Medical Oncology, Amsterdam UMC location University of Amsterdam, Amsterdam, The Netherlands
5. Cancer Treatment and Quality of Life, Cancer Center Amsterdam, Amsterdam, The Netherlands
6. Centre of Expertise for Palliative Care, Maastricht University Medical Centre, Maastricht, The Netherlands
7. Department of Medical Oncology, Maastricht University Medical Centre, Maastricht, The Netherlands
8. Department of Internal Medicine, Maasstad Hospital, Rotterdam, The Netherlands
9. Department of Medical Oncology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, The Netherlands
10. Department of Medical Oncology and Department of Anesthesiology, Pain and Palliative Care, Radboud Medical Center, Nijmegen, The Netherlands
11. Centre of Expertise in Palliative Care, Leiden University Medical Centre, Leiden, The Netherlands
12. Department of Radiotherapy, Leiden University Medical Centre, Leiden, The Netherlands