1. Department of Otolaryngology – Head & Neck Surgery University of Toronto Toronto Ontario Canada
2. Department of Otolaryngology – Head & Neck Surgery Michael Garron Hospital Toronto Ontario Canada
3. Institute of Health Policy, Management and Evaluation, Dalla Lana School of Public Health University of Toronto Toronto Canada
4. Division of Otolaryngology – Head & Neck Surgery, Department of Surgery Dalhousie University Halifax Nova Scotia Canada
5. Department of Otolaryngology – Head & Neck Surgery Mount Sinai Hospital Toronto Ontario Canada