1. Experimental Surgery and Simulation Centre, Faculty of Medicine, Pontificia Universidad Católica de Chile , Santiago , Chile
2. Department of Digestive Surgery, Faculty of Medicine, Pontificia Universidad Católica de Chile , Santiago , Chile
3. Department of Orthopaedics and Trauma, Faculty of Medicine, Pontificia Universidad Católica de Chile , Santiago , Chile
4. Department of Cancer Surgery, Peter MacCallum Cancer Centre , Melbourne, Victoria , Australia
5. University of Melbourne , Melbourne, Victoria , Australia