1. Department of Medicine (Neurology) University of Ottawa Ottawa Ontario Canada
2. Department of Surgery, Division of General Surgery McMaster University Hamilton Ontario Canada
3. Division of Colon and Rectal Surgery, Department of Surgery Jewish General Hospital Montreal Quebec Canada
4. Department of Surgery University of Ottawa Ottawa Ontario Canada
5. Department of Surgery, Division of General Surgery McGill University Montreal Quebec Canada
6. Department of Surgery McGill University Montreal Quebec Canada
7. Department of Systems and Computer Engineering Carleton University Ottawa Ontario Canada
8. Department of Colorectal Surgery Cleveland Clinic Florida Weston Florida USA