1. Division of Otolaryngology–Head and Neck Surgery, University of Alberta, Edmonton, Alberta, Canada
2. Division of Otolaryngology–Head and Neck Surgery, McMaster University, Hamilton, Ontario, Canada
3. Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Alberta, Canada
4. Department of Radiology and Diagnostic Imaging, University of Alberta, Edmonton, Alberta, Canada
5. Otolaryngology–Head and Neck Research Laboratory of Alberta, University of Alberta, Edmonton, Alberta, Canada