1. King's College London, Department of Old Age PsychiatryInstitute of Psychiatry, Psychology & Neuroscience London UK
2. Division of PsychiatryUniversity College London London UK
3. Department of Psychology, Faculty of Science and TechnologyMiddlesex University London UK
4. Beaumont Hospital, Dublin Ireland
5. Faculty of Health SciencesCurtin University Perth Western Australia Australia
6. Mental Health of Older Adults and Dementia Clinical Academic GroupSouth London and Maudsley NHS Foundation Trust London UK