1. McGill University Health Centre, McGill University, Montréal, Quebec, Canada
2. University of Alberta, Edmonton, Alberta, Canada
3. Dalhousie University, Halifax, Nova Scotia, Canada
4. Respiratory Research Centre, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
5. The Ottawa Hospital, Ottawa Hospital Research Institute, University of Ottawa, Ottawa, Ontario, Canada
6. Mount Sinai Hospital, University of Toronto, Ontario, Canada
7. Université de Montréal, Montréal, Quebec, Canada
8. Primary Care Lung Clinic, University of Toronto, Toronto, Ontario, Canada
9. West Park Healthcare Centre, University of Toronto, Toronto, Ontario, Canada
10. Family Physician Airways Group of Canada, Richmond Hill, Ontario, Canada
11. Institut universitaire de cardiologie et de pneumologie de Québec, Université Laval, Quebec, Canada
12. Queen's University, Kingston, Ontario, Canada
13. University of British Columbia, Vancouver, British Columbia, Canada