1. Department of Otolaryngology-Head and Neck Surgery; University Health Network/Toronto General Hospital; Toronto Ontario Canada
2. Department of Otolaryngology-Head and Neck Surgery; University Hospital Zurich; Zurich Switzerland
3. TECHNA Institute, University Health Network/University of Toronto; Toronto Ontario Canada
4. Department of Otolaryngology-Head and Neck Surgery; University Health Network/Mount Sinai Hospital; Toronto Ontario Canada
5. Department of Medical Imaging; University Health Network/Toronto General Hospital; Toronto Ontario Canada