1. Oxfordshire Mental Healthcare NHS Trust; Department of Psychiatry of Old Age; Oxford UK
2. University of Oxford; Department of Psychiatry; Warneford Hospital Oxford UK OX3 7JK
3. Warneford Hospital; University Department of Psychiatry; Oxford UK OX3 7JX
4. School of Psychology, University of Nottingham; Risk Analysis, Social Processes and Health Group; University Park Nottingham UK NG7 2RD
5. Oxford UK