1. Division of Cardiology, Section of Electrophysiology Emory University Atlanta Georgia USA
2. Michigan Heart Ypsilanti Michigan USA
3. Lancaster General Health Lancaster Pennsylvania USA
4. Unidad de Arritmias, Servicio de Cardiología, University Clinical Hospital of Santiago de Compostela Santiago de Compostela Spain
5. Department of Cardiologic Medicine Centre Hospitalier Régional Universitaire de Tours ‐ Hôpital Trousseau Tours France
6. Division of Cardiovascular Medicine, Department of Internal Medicine, Electrophysiology Section The Ohio State University Wexner Medical Center Columbus Ohio USA
7. Baptist Heart Specialists, Baptist Medical Center Jacksonville Florida USA
8. Department of Cardiology Haga Teaching Hospital The Hauge The Netherlands
9. Department of Cardiovascular Sciences, Department of Cardiology University Hospitals Leuven Leuven Belgium
10. University Hospital Southampton NHS Foundation Trust Southampton UK
11. Department of Cardiovascular Medicine Kyorin University School of Medicine Tokyo Japan
12. Medtronic, Inc. Mounds View Minnesota USA
13. Duke University Medical Center and Duke Clinical Research Institute Durham North Carolina USA