1. Clinical Nurse Consultant, Westmead Hospital, Westmead, PO Box 533, Wentworthville, NSW 2145, Australia
2. School of Nursing and Midwifery, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia
3. Clinical Nurse Consultant, Mental Health Liaison Nursing, School of Nursing and Midwifery, Prince of Wales Hospital, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia
4. Centre for Applied Nursing Research (CANR), Ingham Institute for Applied Medical Research, Liverpool, NSW, Australia
5. Westmead Hospital, Westmead, PO Box 533, Wentworthville, NSW 2145, Australia
6. Sydney University Medical School, Sydney, NSW, Australia