1. Cancer Epidemiology and Cancer Services Research, Sydney School of Public Health, Sydney, Australia
2. Surgical Outcomes Research Centre, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
3. Psycho-oncology Cooperative Research Group, School of Psychology, Sydney, Australia
4. Department of Surgical Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
5. Discipline of Surgery, University of Sydney, Sydney, Australia