1. Centre for Ageing Population Studies Research Department of Primary Care and Population Health University College London London UK
2. Marie Curie Palliative Care Research Department Division of Psychiatry University College London London UK
3. Department of Psychiatry Faculty of Medicine Prince of Songkla University Hat Yai Thailand
4. Melbourne Ageing Research Collaboration National Ageing Research Institute Melbourne Victoria Australia
5. Language and Cognition, Division of Psychology and Language Sciences University College London London UK
6. Barnet Enfield and Haringey Mental Health Trust Liaison Team North Middlesex University Hospital Edmonton UK
7. NIHR Health and Social Care Workforce Research Unit and NIHR Applied Research Collaborative (ARC) South London King's College London London UK