1. Division of Rhinology, Department of Otolaryngology—Head and Neck Surgery, University of Toronto, Toronto, Ontario, Canada
2. Division of Otolaryngology—Head and Neck Surgery, Department of Surgery, Dalhousie University, Halifax, Nova Scotia, Canada
3. Department of Family and Community Medicine, University of Toronto, Toronto, Ontario, Canada
4. Division of Otolaryngology—Head and Neck Surgery, Centre Hospitalier de l’University de Montreal, Montreal, Quebec, Canada
5. Division of Otolaryngology—Head and Neck Surgery, Department of Surgery, University of British Columbia, Vancouver, British Columbia, Canada
6. Department of Otolaryngology—Head and Neck Surgery, The University of Ottawa and The Ottawa Hospital, Ottawa, Ontario, Canada
7. Department of Otolaryngology—Head and Neck Surgery, University of Manitoba, Winnipeg, Manitoba, Canada
8. Division of Otolaryngology—Head and Neck Surgery, Department of Surgery, University of Calgary, Calgary, Alberta, Canada
9. Division of Otolaryngology—Head and Neck Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
10. Department of Otolaryngology—Head and Neck Surgery, Western University, London, Ontario, Canada
11. Department of Otolaryngology—Head and Neck Surgery, McGill University, Montreal, Quebec, Canada
12. Division of Otolaryngology—Head and Neck Surgery, Department of Surgery, University of Alberta, Edmonton, Alberta, Canada