1. Department of Medicine
2. Department of Community Health Sciences, and
3. Interstitial Lung Disease Program, University of Calgary, Calgary, Alberta, Canada
4. Department of Physical Therapy and Centre for Heart Lung Innovation, University of British Columbia and St. Paul’s Hospital, Vancouver, British Columbia, Canada
5. Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
6. Department of Medicine, McMaster University, Hamilton, Ontario, Canada; and
7. Department of Medicine and Centre for Heart Lung Innovation, University of British Columbia and St. Paul’s Hospital, Vancouver, British Columbia, Canada