1. University of British Columbia, Vancouver, BC, Canada.
2. Healthy Heart Program, St. Paul's Hospital, Department of Medicine, University of British Columbia, Vancouver, BC, Canada.
3. Division of Cardiology, University of British Columbia and Cardiovascular Imaging Research Core Laboratory, Vancouver, BC, Canada.
4. St. Paul's Hospital IDC Metabolic Clinic, Healthy Heart Prevention Clinic, St Paul's Hospital, and Department of Medicine and Pathology, University of British Columbia, Vancouver, BC, Canada.