1. Wolfson Palliative Care Research Centre, Hull York Medical School, University of Hull, Hull, UK
2. Department of Clinical Sciences Lund, Lund University, Lund, Sweden
3. Department of Health Services Research and department of Family Medicine, Care and Public Health Research Institute, Faculty of Health Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
4. Department of Research & Development, Ciro Horn, The Netherlands
5. Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW, Australia