1. Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
2. Research Centre Innovations in Care, University of Applied Sciences, Rotterdam, The Netherlands
3. University of Humanistic Studies, Utrecht, The Netherlands
4. Department of Medical Oncology, Erasmus MC Cancer Institute, University Medical Center, Rotterdam, The Netherlands
5. Department of public and occupational health, Expertise Center for Palliative Care, Amsterdam UMC, VU University, Amsterdam, the Netherlands