1. End-of-life Care Research Group, Vrije Universiteit Brussel (VUB) & Universiteit Gent, Brussels, Belgium
2. Department of Public Health and Primary Care, Universiteit Gent, Ghent, Belgium
3. Department of Family Medicine and Chronic Care, Vrije Universiteit Brussel (VUB) & Ghent University, Brussels, Belgium
4. Marie Curie Hospice, Glasgow, UK
5. Erasmus MC, University Medical Centre Rotterdam, Department of Public Health, Rotterdam, The Netherlands
6. Department of Head and Skin, Ghent University Hospital, Universiteit Gent, Ghent, Belgium