1. Department of Health Services Research, Care and Public Health Research Institute, Maastricht University, Maastricht, The Netherlands
2. Department of Cardiology, Catharina Hospital, Eindhoven, North Brabant, The Netherlands
3. Department of Patient and Care, Maastricht University Medical Centre, Maastricht, Limburg, The Netherlands
4. Department of Family Medicine, Care and Public Health Research Institute, Maastricht University, Maastricht, The Netherlands
5. Kleijnen Systematic Reviews Ltd, York, UK
6. Centre of Expertise for Palliative Care, Maastricht University Medical Centre, Maastricht, The Netherlands
7. Department of Anesthesiology, Pain and Palliative Medicine Radboud University Medical Centre, Nijmegen, The Netherlands
8. Department of Cardiology, Radboud University Medical Centre, Nijmegen, The Netherlands
9. Department of Research and Education, Ciro, Horn, The Netherlands