1. Division of Otolaryngology – Head & Neck Surgery Dalhousie University Halifax Nova Scotia Canada
2. Institute of Health Policy, Management and Evaluation University of Toronto Toronto Ontario Canada
3. Department of Otolaryngology – Head & Neck Surgery University of Toronto Toronto Ontario Canada
4. Division of General Surgery, Department of Surgery University of Toronto Toronto Ontario Canada
5. Division of General Surgery, Department of Surgery Sunnybrook Health Sciences Centre Toronto Ontario Canada
6. Department of Critical Care Medicine Sunnybrook Health Sciences Centre Toronto Ontario Canada
7. Department of Otolaryngology – Head & Neck Surgery Sunnybrook Health Sciences Centre Toronto Ontario Canada