1. Comprehensive Arrhythmia Research & Management CenterSalt Lake City Utah
2. Department of Cardiology and Vascular MedicineWest‐German Heart and Vascular Center Essen, University of Essen Medical School, University Duisburg‐EssenEssen Germany
3. German Cardiovascular Research Center (DZHK), Munich Heart Alliance Munich Germany
4. Department of Medicine IUniversity Hospital Munich, Ludwig‐Maximilians University Munich Germany
5. Division of Cardiology, Iowa City VA Health Care SystemIowa City Iowa
6. Division of CardiologyUniversity of IowaIowa City Iowa
7. Swedish Heart and Vascular InstituteSeattle Washington
8. Division of GastroenterologyUniversity of UtahSalt Lake City Utah
9. Division of Cardiovascular MedicineUniversity of UtahSalt Lake City Utah