1. Department of Palliative Care, Calvary Mater Newcastle, Newcastle, Australia.
2. School of Medicine and Public Health, University of Newcastle, Newcastle, Australia.
3. Palliative Care Outcomes Collaboration, Australian Health Services Research Institute (AHSRI), University of Wollongong, Wollongong, Australia.
4. Centre for Health Service Development, Australian Health Services Research Institute (AHSRI), University of Wollongong, Wollongong, Australia.
5. Discipline, Palliative and Supportive Services, Flinders University, Adelaide, South Australia, Australia.