1. Department of Surgery; McMaster University; Hamilton Canada
2. Thrombosis; Population Health Research Institute (McMaster University/Hamilton Health Sciences); Hamilton Canada
3. Electrophysiology Programme; Schulich Heart Centre; Toronto Canada
4. Medicine; McMaster University; Hamilton Canada
5. Department of Cardiac Sciences, Cumming School of Medicine; Foothills Medical Centre; Calgary Canada
6. Dept of Medicine, Cardiology Section; University of Ottawa Heart Institute; Ottawa Canada