1. ATLANTES Research Program, Institute for Culture and Society (ICS), University of Navarra, Pamplona, Spain
2. Palliative Medicine Group, Area of Oncology and Haematology, Navarra’s Health Research Institute (IDISNA), Pamplona, Spain
3. European Association for Palliative Care (EAPC) Task Force on the Development of Palliative Care in Europe, Milan, Italy
4. Department of Anesthesiology and Critical Care Medicine and Palliative Care Program, Johns Hopkins School of Medicine, Baltimore, MD, USA
5. Department of Health Sciences, Public University of Navarra, Pamplona, Spain
6. Clinical Epidemiology Group, Epidemiology and Public Health Area, Navarra’s Health Research Institute (IDISNA), Pamplona, Spain
7. School of Interdisciplinary Studies, University of Glasgow, Dumfries Campus, Dumfries, UK
8. Wellcome Trust, London, UK
9. University of Navarra, Pamplona, Spain