1. Department of Oncology and Metabolism, University of Sheffield, Sheffield, UK
2. Palliative Care Unit, University of Liverpool, Liverpool, UK
3. The Medical School, University of Sheffield, Sheffield, UK
4. Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
5. School of Health and Related Research, University of Sheffield, Sheffield, UK
6. St Luke’s Hospice, Sheffield, UK
7. Academic Unit of Palliative Care, School of Medicine, University of Leeds, Leeds, UK
8. Department of Health Sciences, The University of York, York, UK
9. Department of Health Sciences, Martin House Research Centre, University of York, York, UK