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⁎Adult Congenital Heart Center and Electrophysiology Service, Montreal Heart Institute, University of Montreal, Montreal, Canada
†Division of Pediatric Cardiology, Washington University School of Medicine, St. Louis Children's Hospital, St. Louis, Missouri
Address reprint requests and correspondence: Dr. Paul Khairy, Adult Congenital Heart Center, Montreal Heart Institute, 5000 Belanger Street East, Montreal, Quebec, Canada H1T 1C8
This work was supported in part by the Canada Research Chair in Electrophysiology and Adult Congenital Heart Disease (Dr. Khairy). Dr. Khairy has received honoraria from St Jude Medical.