1. Department of Physical Therapy; University of British Columbia; Vancouver BC Canada
2. Division of Respiratory Medicine; Department of Medicine; University of British Columbia; Vancouver BC Canada
3. Department of Radiology; Centre for Heart Lung Innovation; University of British Columbia; Vancouver BC Canada
4. Department of Physical Therapy; Centre for Heart Lung Innovation; University of British Columbia; Vancouver BC Canada
5. Department of Physical Therapy; University of Toronto; ON Canada
6. Interdivisional Department of Critical Care Medicine; University of Toronto; ON Canada
7. Toronto Rehabilitation Institute; Toronto ON Canada