Sally Taylor1, Clare Harley2, Kate Absolom3, Julia Brown4, Galina Velikova3. 1. Academic Unit of Palliative Care, Leeds Institute of Health Sciences, University of Leeds, Leeds, West Yorkshire, UK. 2. School of Healthcare, University of Leeds, Leeds, West Yorkshire, UK. 3. Patient Reported Outcomes Group, St James's Institute of Oncology, Leeds Institute of Cancer and Pathology, University of Leeds, Leeds, West Yorkshire, UK. 4. Leeds Institute of Clinical Trials Research, University of Leeds, Leeds, West Yorkshire, UK.