1. Department of Dermatology, Liverpool Hospital, Liverpool, New South Wales, Australia
2. South West Sydney Clinical Campuses, University of New South Wales, Liverpool, New South Wales, Australia
3. Discipline of Surgery, College of Medicine and Public Health, Flinders University, Bedford Park, Adelaide, South Australia, Australia
4. Flinders Health and Medical Research Institute, College of Medicine and Public Health, Flinders University, Bedford Park, Adelaide, South Australia, Australia
5. Department of Surgery, Flinders Medical Centre, Bedford Park, Adelaide, South Australia, Australia
6. Corporal Michael J. Crescenz VA Medical Center, Philadelphia, Pennsylvania
7. Department of Dermatology, University of Pennsylvania, Philadelphia