1 Primary Care Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge.
2 Public Contributor and Member of the Cambridge Palliative and End of Life Care Patient and Public Involvement Group, Primary Care Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge.
3 Nottingham Centre for the Advancement of Research into Supportive, Palliative and End of Life Care, School of Health Sciences, University of Nottingham, Nottingham.