1. End-of-Life Care Research Group, Vrije Universiteit Brussel, Brussels
2. End-of-Life Care Research Group, Vrije Universiteit Brussel, Brussels, and Bioethics Institute Ghent, Ghent University, Ghent
3. Centre for Oncology, University Hospital, Vrije Universiteit Brussel, Brussels
4. Centre for Oncology, University Hospital, Vrije Universiteit Brussel, Brussels, Belgium
5. Department of Public and Occupational Health, EMGO Institute, VU University Medical Centre, Amsterdam, The Netherlands, and End-of-Life Care Research Group, Vrije Universiteit Brussel, Brussels, Belgium