1. Marie Curie Palliative Care Research Department, Division of Psychiatry, University College London, London, UK
2. Faculty of Health Studies, Centre for Applied Dementia Studies, University of Bradford, Bradford, UK
3. The Research Department of Primary Care and Population Health, University College London, London, UK
4. Barnet Enfield and Haringey Mental Health Trust Liaison Psychiatry Team, North Middlesex University Hospital, London, UK