1. Heart Rhythm Services, Division of Cardiology, Department of Medicine; University of British Columbia; Vancouver British Columbia Canada
2. Institut Universitaire de Cardiologie et Pneumologie de Québec; Universite Laval; Quebec City Quebec Canada
3. Department of Medicine; QEII Health Sciences Centre and Dalhousie University; Halifax Nova Scotia Canada
4. McGill University Health Centre and Hôpital Sacré-Coeur de Montréal; Montreal Quebec Canada
5. Royal Jubilee Hospital; Victoria British Columbia Canada
6. Population Health Research Institute; Hamilton Ontario Canada
7. Mazankowski Alberta Heart Institute; University of Alberta; Edmonton Alberta Canada
8. Institut de Cardiologie de Montréal; Montreal Quebec Canada
9. Heart Rhythm Service, University Hospital; Western University; London Ontario Canada
10. University of Ottawa Heart Institute; Ottawa Ontario Canada