1. Department of Medicine, University of British Columbia and St. Paul’s Hospital, Vancouver, British Columbia, Canada
2. Department of Pulmonary Medicine, University Hospital and University of Bern, Bern, Switzerland
3. The Lung Centre, Vancouver General Hospital, Vancouver, British Columbia, Canada
4. Centre for Heart Lung Innovation, University of British Columbia and St. Paul’s Hospital, Vancouver, British Columbia, Canada
5. Department of Physical Therapy, University of British Columbia, Vancouver, British Columbia, Canada