1. St Gemma’s Academic Unit of Palliative Care, Leeds Institute of Health Sciences, University of Leeds, Level 10, Worsley Building, Clarendon Way, Leeds, UK
2. Leeds Teaching Hospitals NHS Trust, Leeds General Infirmary, Great George Street, Leeds, UK
3. Health Services Research, Leeds Institute of Health Sciences, University of Leeds, Level 10, Worsley Building, Clarendon Way, Leeds, UK