1. Surgical Outcomes Research Centre (SOuRCe), University of Sydney, Sydney, NSW.
2. Sydney South West Area Health Service, Sydney, NSW.
3. John James Medical Centre, Canberra, ACT.
4. Cancer Epidemiology Research Unit, Cancer Council NSW, Sydney, NSW.
5. Faculty of Health, University of Sydney, Sydney, NSW.
6. Sydney Cancer Centre and School of Public Health, University of Sydney, Sydney, NSW.
7. Professorial Surgical Unit, Faculty of Medicine, University of New South Wales, St Vincent's Hospital Clinical School, Sydney, NSW.
8. Cancer Services, St Vincent's and Mater Health, Sydney, NSW.
9. Department of Medical Oncology, Newcastle Mater Misericordiae Hospital, Newcastle, NSW.
10. Faculty of Health, University of Newcastle, Hunter Medical Research Institute, Newcastle, NSW.
11. Department of Surgery, Concord Repatriation General Hospital, Sydney, NSW.
12. Discipline of Surgery, University of Sydney, Sydney, NSW.
13. Department of Colorectal Surgery, Royal Prince Alfred Hospital, Sydney, NSW.