1. Population Health Research Institute, McMaster University , 237 Barton Street East, Hamilton, Ontario L8L 2X2 , Canada
2. Department of Clinical Sciences, Lund University , Jan Waldenströms gata 35, 20502 Malmö , Sweden
3. Michael G. DeGroote School of Medicine, Faculty of Health Sciences, McMaster University , 90 Main St W, Hamilton, ON L8P 1H6 , Canada
4. Department of Medicine, Division of Cardiology, McGill University Health Centre , 1001 Decarie Boulevard, Montreal, Quebec H4A 3J1, Quebec , Canada
5. University of Groningen, University Medical Center Groningen , Hanzeplein 1, 9713 GZ, Groningen , The Netherlands
6. Sunnybrook Health Sciences Centre, Sunnybrook Research Institute, University of Toronto , Canada
7. Division of Cardiology, Department of Medicine, Faculty of Health Sciences, McMaster University , Canada
8. Division of Cardiac Arrhythmias and Electrophysiology, Instituto Dante Pazzanese de Cardiologia , São Paulo , Brazil
9. Sidney Kimmel Medical School and Bryn Mawr and Lankenau Hospitals , Philadelphia, PA , USA
10. Uppsala Clinical Research Center , Uppsala , Sweden