1. Department of Colorectal Surgery and Department of Surgery Liverpool Hospital Liverpool New South Wales Australia
2. School of Medicine Western Sydney University Penrith New South Wales Australia
3. Department of Anatomy University of Otago Otago New Zealand
4. Department of Surgery Medical University of Graz Graz Austria
5. Department of General Surgery Shanghai Minimally Invasive Surgery Centre Ruijin Hospital Shanghai Jiao Tong University School of Medicine Shanghai China