1. School of Physiotherapy, Dalhousie University, Halifax, Nova Scotia, Canada;
2. Department of Physical Therapy, University of British Columbia, Vancouver, British Columbia, Canada;
3. Centre for Heart Lung Innovation, University of British Columbia, Vancouver, British Columbia, Canada;
4. Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada;
5. Division of Respirology, Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada;
6. Division of Pulmonary Medicine, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada;
7. G.F. MacDonald Centre for Lung Health, Covenant Health, Edmonton, Alberta, Canada;
8. Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada;
9. Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada;
10. Department of Medicine, University of Toronto, Toronto, Ontario, Canada;
11. Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada;
12. Division of Respirology, Critical Care and Sleep Medicine, Respiratory Research Center, University of Saskatchewan, Saskatoon, Saskatchewan, Canada;
13. Pulmonary Division, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada