1 Johns Hopkins Medical Institutions, Baltimore, MD.
2 Heart Center Leipzig, Leipzig, Germany.
3 Humanitas Research Hospital, Arrhythmias and Electrophysiology Research Center, Milan, Italy (Dr. Cappato is now with the Department of Biomedical Sciences, Humanitas University, Milan, Italy, and IRCCS, Humanitas Clinical and Research Center, Milan, Italy).
4 Korea University, Seoul, South Korea.
5 Hospital Pro-Cardiaco and Hospital Samaritano, Botafogo, Rio de Janeiro, Brazil.
6 Centro Privado de Cardiología, Tucuman, Argentina.
7 Yale University School of Medicine, New Haven, CT.
8 West Virginia University School of Medicine, Morgantown, WV.
9 Cardiovascular Institute, Hospital Clínic, University of Barcelona, Catalonia, Spain.
10 St. George's University of London, London, United Kingdom.
11 Indiana University School of Medicine, Indianapolis, IN.
12 National Yang-Ming University, Taipei, Taiwan.
13 Cleveland Clinic, Cleveland, OH.
14 Aarhus University Hospital, Skejby, Denmark.
15 University at Buffalo, Buffalo, NY.
16 Imperial College Healthcare NHS Trust, London, United Kingdom.
17 Intermountain Medical Center Heart Institute, Salt Lake City, UT.
18 Hospital SOS Cardio, Florianopolis, SC, Brazil.
19 Erasmus Medical Center, Rotterdam, the Netherlands.
20 Albert Einstein College of Medicine, Montefiore-Einstein Center for Heart & Vascular Care, Bronx, NY.
21 Universitair Ziekenhuis Gent (Ghent University Hospital), Ghent, Belgium.
22 The Heart Hospital, Baylor Plano, Plano, TX.
23 Virginia Commonwealth University School of Medicine, Richmond, VA.
24 Massachusetts General Hospital, Boston, MA.
25 Royal Brompton and Harefield NHS Foundation Trust, National Heart and Lung Institute, Imperial College London, London, United Kingdom.
26 Albert Einstein Jewish Hospital, Federal University of São Paulo, São Paulo, Brazil.
27 University of California, San Francisco, San Francisco, CA.
28 Beaumont Health System, Royal Oak, MI.
29 Hôpital Cardiologique du Haut-Lévêque, Pessac, France.
30 Boston University Medical Center, Boston, MA.
31 Boston University School of Medicine, Boston, MA.
32 Heart Rhythm Institute, University of Oklahoma Health Sciences Center, Oklahoma City, OK.
33 University of Michigan, Ann Arbor, MI, the National Center for Cardiovascular Research Carlos III (CNIC) and CIBERCV, Madrid, Spain.
34 Royal Melbourne Hospital and University of Melbourne, Melbourne, Australia.
35 Institute for Clinical and Experimental Medicine, Prague, Czech Republic.
36 Hirslanden Hospital, Department of Electrophysiology, Zurich, Switzerland.
37 Asklepios Klinik St. Georg, Hamburg, Germany.
38 Heart Rhythm Center, Fukuoka Sanno Hospital, Fukuoka, Japan.
39 Saint Louis University Medical School, St. Louis, MO.
40 Department of Cardiology and Intensive Care, Hospital Munich-Thalkirchen, Munich, Germany.
41 Montreal Heart Institute, Department of Medicine, Université de Montréal, Montréal, Canada.
42 Hospital of the University of Pennsylvania, University of Pennsylvania School of Medicine, Philadelphia, PA.
43 Brigham and Women's Hospital, Boston, MA.
44 Texas Cardiac Arrhythmia Institute, St. David's Medical Center, Austin, TX.
45 Montreal Heart Institute and Université de Montréal, Montreal, Canada, McGill University, Montreal, Canada, and University Duisburg-Essen, Essen, Germany.
46 Division of Cardiology, Saiseikai Kumamoto Hospital, Kumamoto, Japan.
47 Mayo Clinic, Rochester, MN.
48 State Research Institute of Circulation Pathology, Novosibirsk, Russia.
49 Lahey Hospital and Medical Center, Burlington, MA.
50 Centre for Heart Rhythm Disorders, South Australian Health and Medical Research Institute, University of Adelaide and Royal Adelaide Hospital, Adelaide, Australia.
51 Instituto do Coração (InCor), São Paulo, Brazil.
52 Barts Heart Centre, London, United Kingdom.
53 Cardiac Arrhythmia Research Center, Centro Cardiologico Monzino, IRCCS, Department of Cardiovascular Sciences, University of Milan, Milan, Italy.
54 National Yang-Ming University Hospital, Yilan City, Taiwan.
55 Southlake Regional Health Centre, University of Toronto, Toronto, Canada.
56 Loyola University of Chicago, Chicago, IL.
57 Jikei University School of Medicine, Tokyo, Japan.