1. Division of Cardiology Mount Sinai Hospital/University Health Network Toronto Ontario Canada
2. Institute of Medical Science University of Toronto Toronto Ontario Canada
3. Faculty of Kinesiology and Physical Education University of Toronto Toronto Ontario Canada
4. School of Health and Exercise Sciences, Centre for Heart, Lung and Vascular Health University of British Columbia Kelowna British Columbia Canada
5. Department of Medicine, Division of Respirology University Health Network Toronto Ontario Canada
6. Department of Medical Imaging University of Toronto Toronto Ontario Canada
7. Department of Surgery, Division of Thoracic Surgery University of Toronto Toronto Ontario Canada