1. Department of Public Health, Amsterdam UMC and Amsterdam Public Health Research Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
2. Netherlands Institute for Health Services Research (NIVEL), Utrecht, the Netherlands
3. Department of Public and Occupational Health, Amsterdam UMC Expertise center for Palliative Care and Amsterdam Public Health Research Institute, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
4. Department of General Practice, Amsterdam UMC Expertise center for Palliative Care and Amsterdam Public Health Research Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands