1. Academic Unit of Psychological Medicine, Australian National University Medical School, Building 4, Level 2, Canberra Hospital, PO Box 11, Woden, Australian Capital Territory, 2605, Australia
2. Academic Unit of Psychological Medicine, Australian National University Medical School; Director, Research Centre for the Neurosciences of Ageing, Canberra Hospital, Garran, Australian Capital Territory, Australia
3. Discipline of Psychiatry, University of Queensland; Director, Geriatric Psychiatry, Royal Brisbane and Women's Hospital, Queensland, Australia
4. Academic Unit of Psychological Medicine, Australian National University Medical School; Professor of Population Mental Health and Disasters, University of Western Sydney, New South Wales, Australia