1. Division of Palliative Care Medicine, University of Alberta, Edmonton, Alberta, Canada.
2. Regional Centre for Excellence in Palliative Care, Department of Oncology, Oslo University Hospital, Oslo, Norway.
3. University of Oslo, Oslo, Norway.
4. European Palliative Care Research Centre (PRC), Faculty of Medicine, Norwegian University of Science and Technology (NTNU), Trondheim, Norway.
5. St. Olav University Hospital, Trondheim, Norway.
6. Flinders University, Adelaide, Australia.