1. Cardiac Electrophysiology Section, Duke Center for Atrial FibrillationDuke Clinical Research Institute, Duke University Medical Center Durham North Carolina
2. Duke Clinical Research Institute Durham North Carolina
3. Division of CardiologyUniversity of California Los Angeles Los Angeles California
4. Department of CardiologyYale University School of Medicine New Haven Connecticut
5. Department of CardiologyLankenau Hospital and Medical Research Center Philadelphia Pennsylvania
6. Department of Cardiology, New York University School of MedicineLenox Hill Hospital New York New York
7. Division of Cardiovascular DiseasesMayo Clinic Rochester Minnesota
8. Department of CardiologyStanford University School of Medicine Palo Alto California
9. Department of CardiologyPenn State University School of Medicine Hershey Pennsylvania
10. Department of CardiologyBoston University School of Medicine Boston Massachusetts
11. Division of ResearchKaiser Permanente Oakland California