1. End-of-Life Care Research Group, Department of Family Medicine and Chronic Care, Vrije Universiteit Brussel (VUB) and Ghent University, Brussels, Belgium
2. Amsterdam Public Health Research Institute, Department of Public and Occupational Health, Expertise Center for Palliative Care, VU University Medical Center, Amsterdam, The Netherlands
3. Scientific Institute of Public Health (Wetenschappelijk Instituut Volksgezondheid, Institut Scientifique de Santé Publique), Unit of Health Services Research, Brussels, Belgium
4. NIVEL Primary Care Database—Sentinel Practices, Netherlands Institute for Health Services Research, Utrecht, The Netherlands
5. Clinical and Descriptive Epidemiology Unit, Cancer Prevention and Research Institute, Florence, Italy
6. Public Health Directorate, Regional Ministry of Health (Dirección General de Salud Pública, Consellería de Sanidad), Valladolid, Spain
7. Department of Medical Oncology, Ghent University Hospital, Ghent, Belgium