1. Centre for Heart Lung Innovation, Providence Health Care Research Institute, University of British Columbia, St. Paul’s Hospital, Vancouver, British Columbia, Canada
2. Department of Physical Therapy, University of British Columbia, Vancouver, British Columbia, Canada
3. Centre for Health Evaluation & Outcome Sciences, Providence Health Care Research Institute, University of British Columbia, St. Paul’s Hospital, Vancouver, British Columbia, Canada
4. Pacific Adult Congenital Heart Disease Clinic, Division of Cardiology, St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
5. Department of Cardiology, Boston Children’s Hospital, Boston, Massachusetts
6. Department of Medicine, Brigham and Women’s Hospital, Boston, Massachusetts