1. School of Population Health, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009, Australia
2. National Confidential Inquiry into Suicide and Homicide by People with Mental Illness, Centre for Suicide Prevention, Community Based Medicine, University of Manchester, Manchester, UK
3. Discipline of Emergency Medicine, University of Western Australia, Crawley, Western Australia, Australia
4. Clinical Governance Network Lancashire Care NHS Foundation Trust, Preston, UK