1. Department of Otolaryngology–Head and Neck SurgerySunnybrook Health Sciences Center Toronto Ontario Canada
2. Department of Mechanical and Industrial EngineeringUniversity of Toronto Toronto Ontario Canada
3. Institute for Clinical Evaluative Sciences Toronto Ontario Canada
4. Department of PathologySunnybrook Health Sciences Center Toronto Ontario Canada
5. Division of Otolaryngology–Head and Neck SurgeryDuke University Medical Center Durham North Carolina U.S.A