1. P Good (corresponding author) University of Newcastle, Callaghan, New South Wales, Australia, and University of Queensland, Brisbane, Queensland, Australia, and St. Vincent's Hospital Brisbane, 411 Main Street, Kangaroo Point, Brisbane, Queensland 4169, Australia;
2. Department of Palliative Care, Calvary Mater Newcastle Hospital, Waratah, New South Wales, Australia
3. School of Nursing and Midwifery, Faculty of Health, University of Newcastle, Callaghan, New South Wales, Australia, and Centre for Practice Opportunity and Development, Hunter New England Local Health Network, New Lambton, New South Wales, Australia
4. School of Nursing and Midwifery, University of Newcastle, Callaghan, New South Wales, Australia