1. End-of-life Care Research Group, Vrije Universiteit Brussel (VUB) and Ghent University, Belgium
2. Department of Family Medicine and Chronic Care, Vrije Universiteit Brussel (VUB), Belgium
3. Department of Public Health and Primary Care, Ghent University, Belgium
4. Department of Public Health, Erasmus University Medical Centre (Erasmus MC), Rotterdam, the Netherlands