1. Institute of Cardiovascular Sciences, St. Boniface General Hospital, University of Manitoba, Winnipeg, MB, Canada
2. Section of Cardiology, Surrey Memorial Hospital, University of British Columbia, Vancouver, BC, Canada
3. Section of Cardiology, Department of Internal Medicine, University of Manitoba, Winnipeg, MB, Canada
4. Department of Radiology, St. Boniface General Hospital, University of Manitoba, Winnipeg, MB, Canada