1. End-of-Life Care Research Group, Vrije Universiteit Brussel, Brussels, Belgium,
2. End-of-Life Care Research Group, Vrije Universiteit Brussel, Brussels, Belgium
3. End-of-Life Care Research Group, Vrije Universiteit Brussel, Brussels, Belgium, Public Health Department, Vrije Universiteit Brussel, Brussels, Belgium
4. Department of Public and Occupational Health, EMGO Institute for Health and Care Research, Expertise Centre for Palliative Care, VU University Medical Centre, Amsterdam, The Netherlands
5. End-of-Life Care Research Group, Vrije Universiteit Brussel, Brussels, Belgium, Unit Supportive & Palliative Care, Universitair Ziekenhuis Brussel, Brussels, Belgium
6. End-of-Life Care Research Group, Vrije Universiteit Brussel, Brussels, Belgium, Department of Public and Occupational Health, EMGO Institute for Health and Care Research, Expertise Centre for Palliative Care, VU University Medical Centre, Amsterdam, The Netherlands