1. Division of Otolaryngology-Head and Neck Surgery, Department of Surgery, St. Paul Sinus Center, University of British Columbia, 2600-1081 Burrard Street, V6Z 1Y6, Vancouver, BC, Canada
2. Department of Respirology, University of Alberta, Edmonton, AB, Canada
3. Department of Medicine, University of Toronto, Toronto, ON, Canada
4. Department of Otolaryngology-Head and Neck Surgery, University of Toronto, Toronto, ON, Canada
5. Division of Otolaryngology-Head and Neck Surgery, Department of Surgery, Dalhousie University, Halifax, NS, Canada
6. Department of Medicine, Dalhousie University, Halifax, NS, Canada
7. Department of Medicine, University of British Columbia, Vancouver, BC, Canada
8. Division of Allergy and Immunology, Department of Medicine, Queen's University, Kingston, ON, Canada
9. Department of Otolaryngology-Head and Neck Surgery, University of Manitoba, Winnipeg, MB, Canada
10. Department of Medicine, Laval University, Quebec City, QC, Canada
11. Department of Otolaryngology-Head and Neck Surgery, The University of Ottawa and The Ottawa Hospital, Ottawa, ON, Canada
12. Division of Clinical Immunology and Allergy, Department of Medicine, Western University, London, ON, Canada
13. Division of Clinical Immunology and Allergy, Department of Medicine, McMaster University, Hamilton, ON, Canada
14. Division of Respiratory Medicine, University of British Columbia, Vancouver, BC, Canada
15. Department of Medicine, University of Calgary, Calgary, AB, Canada
16. Department of Medicine, CIUSS du Nord de l’île de Montreal, Université de Montreal, Montreal, QC, Canada
17. Lakeridge Health, Ajax, ON, Canada
18. Department of Otolaryngology-Head and Neck Surgery, Western University, London, ON, Canada
19. Division of Clinical Immunology and Allergy, University of Calgary, Calgary, AB, Canada
20. Division of Otolaryngology-Head and Neck Surgery, Department of Surgery, McMaster University, Hamilton, ON, Canada
21. Department of Otolaryngology-Head and Neck Surgery, McGill University, Montreal, QC, Canada
22. Division of Otolaryngology-Head and Neck Surgery, Department of Surgery, University of Alberta, Edmonton, AB, Canada
23. Department of Medicine, Western University, London, ON, Canada
24. Division of Otolaryngology-Head and Neck Surgery, Centre Hospitalier de l'Université de Montreal, Montreal, QC, Canada