1. Division of Cardiology; Schulich Heart Program, Sunnybrook Health Sciences Centre; Toronto, Ontario Canada
2. Department of Cardiology; Sheba Medical Center, Tel Aviv University; Tel Aviv Israel
3. Division of Cardiology; Libin Cardiovascular Institute of Alberta; Calgary Alberta Canada
4. Division of Cardiology; St. Michael's Hospital; Toronto Ontario Canada
5. Department of Medicine; University of Toronto, Division of Cardiology; Toronto Ontario Canada
6. Management and Evaluation (IHPME); University of Toronto, Institute of Health Policy; Toronto, Ontario Canada
7. Institute for Clinical Evaluative Sciences (ICES); Toronto Ontario Canada