1. Department of Surgery, Faculty of Education and Centre for Education Research & Innovation (CERI), The University of Western Ontario, London, ON N6A 3K7, Canada
2. Centre for Education Research & Innovation (CERI), The University of Western Ontario, London, ON N6A 3K7, Canada
3. Center for Health Professions Education, The Uniformed Services University, Bethesda, MD 20814, USA
4. The Henry M Jackson Foundation for the Advancement of Military Medicine, Inc, Bethesda, MD 20817, USA