1. Duke Center for Atrial Fibrillation, Duke Clinical Research Institute, Duke University Medical Center, Durham, North Carolina
2. Heart and Vascular Center, MetroHealth Medical Center, Cleveland, Ohio
3. University of Wisconsin School of Medicine & Public Health, Madison
4. Ahmanson–University of California at Los Angeles Cardiomyopathy Center, Ronald Reagan–University of California at Los Angeles Medical Center, Los Angeles5Associate Editor for Health Care Quality and Guidelines, JAMA Cardiology
5. Department of Cardiovascular Diseases, Mayo Clinic and Mayo Clinic College of Medicine, Rochester, Minnesota
6. Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, Maryland