1. Department of Internal Medicine, University of British Colombia , Vancouver, BC , Canada
2. Department of Pediatrics, College of Medicine and Health Sciences, UAE University , Alain , United Arab Emirates
3. Division of Clinical Chemistry, Vancouver General Hospital , Vancouver, BC , Canada
4. Department of Pathology and Laboratory Medicine, University of British Columbia and Providence Health Care , Vancouver, BC , Canada
5. Department of Pathology and Laboratory Medicine, University of British Columbia and Vancouver General Hospital , Vancouver, BC , Canada
6. Division of Cardiology, Department of Medicine, Providence Health Care , Vancouver, BC , Canada
7. General Internal Medicine, Department of Medicine, University of British Columbia and Providence Health Care , Vancouver, BC , Canada