1. Palliative and Supportive Services, Flinders University, Room 55, A Block, Repatriation General Hospital, Daws Road, Daw Park, SA 5041, Australia
2. Flinders Clinical Effectiveness, Flinders University, Room 55, A Block, Repatriation General Hospital, Daws Road, Daw Park, SA 5041, Australia
3. Haematology, Oncology and Palliative Care, Virginia Commonwealth University, Richmond, VA, USA
4. Health Economics Unit, School of Health and Population Sciences, University of Birmingham, Birmingham, UK