1. Department of Plastic and Reconstructive Surgery, Concord Repatriation General Hospital, Concord, NSW, Australia
2. Department of General Surgery, Macquarie University Hospital, North Ryde, NSW, Australia
3. Concord Repatriation General Hospital, Concords, NSW, Australia
4. Concord Clinical School, The University of Sydney, NSW, Australia
5. Macquarie University Hospital, North Ryde, NSW, Australia
6. Liverpool Hospital, Liverpool, NSW, Australia
7. The Australian School of Advanced Medicine, Macquarie University Hospital, North Ryde, NSW, Australia