1. Centre for the Advancement of Minimally Invasive Surgery, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB, Canada T5H 3V9
2. University of Alberta, Edmonton, AB, Canada T6G 2C9
3. University of Alberta, Institute of Health Economics, Edmonton, AB, Canada T5J 3N4
4. Faculty of Medicine & Dentistry, University of Alberta, Edmonton, AB, 2-590 Edmonton Clinic Health Academy, 11405-87 Avenue NW, Edmonton, AB, Canada T6G 2C9