1. Cardiology DivisionMassachusetts General Hospital Boston Massachusetts
2. Department of Cardiovascular MedicineMayo Clinic Rochester Minnesota
3. Department of Cardiology/Cardiac‐Thoracic‐Vascular SurgeryOspedale Niguarda Niguarda Italy
4. The Lindner Clinical Research CenterThe Heart and Vascular Center at the Christ Hospital Cincinnati Ohio
5. Medtronic, Plc Mounds View Minnesota
6. Medtronic Bakken Research Center Maastricht Netherlands
7. Department of ElectrophysiologyGenesisCare Heidelberg Victoria Australia