1. School of Nursing and Midwifery, University of Newcastle, Newcastle, New South Wales, Australia;
2. Department of Psychological Medicine, School of Medicine and Health Sciences, University of Otago, Wellington, New Zealand;
3. SYNERGY: Nursing and Midwifery Research Centre, University of Canberra and ACT Health, Canberra, Australia;
4. Department of Nursing, Faculty of Health Sciences, Centre for Psychiatric Nursing, The University of Melbourne, Melbourne, Australia;
5. University of Auckland, Auckland, New Zealand;
6. ANU Medical School, College of Health and Medicine, Australian National University, Canberra, Australia