1. Center of Expertise in Palliative Care, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Heidelberglaan 100, P.O. Box 85500, Utrecht 3508 GA, The Netherlands
2. Center of Expertise in Palliative Care, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
3. Cancer Center, University Medical Center Utrecht, Utrecht, The Netherlands
4. Academic Hospice Demeter, De Bilt, The Netherlands