1. Cleveland Clinic Cleveland Ohio USA
2. University of Washington Seattle Washington USA
3. University of Hong Kong Hong Kong China
4. Hospital SOS Cárdio Florianópolis Brazil
5. Duke University Medical Center Durham North Carolina USA
6. Indraprastha Apollo Hospital New Delhi India
7. University of California San Diego Health La Jolla California USA
8. Mayo Clinic, Rochester Rochester Minnesota USA
9. University of Michigan Medical School Ann Arbor Michigan USA
10. Temple University Philadelphia Pennsylvania USA
11. University at Buffalo Buffalo New York USA
12. Medical University of Łódź, Łódź Poland
13. Virginia Mason Franciscan Health Tacoma Washington USA
14. Stanford University, Pediatric Cardiology Palo Alto California USA
15. Hackensack Meridian School of Medicine Hackensack New Jersey USA
16. Medical University of South Carolina Charleston South Carolina USA
17. University of Wisconsin School of Medicine and Public Health Madison Wisconsin USA
18. Kansas City Heart Rhythm Institute Overland Park Kansas USA
19. University Hospitals and Case Western Reserve University School of Medicine Cleveland Ohio USA
20. University of Minnesota Minneapolis Minnesota USA
21. McMaster University Hamilton Ontario Canada
22. First Affiliated Hospital of Wenzhou Medical University Wenzhou China
23. Case Western Reserve University Cleveland Ohio USA
24. University of Arizona, Sarver Heart Center Tucson Arizona USA
25. MetroHealth Medical Center Case Western Reserve University Cleveland Ohio USA
26. The Children's Hospital of Michigan Central Michigan University Detroit Michigan USA
27. Southlake Regional Health Center Newmarket Ontario Canada
28. Sentara Norfolk Virginia USA
29. Virginia Commonwealth University Richmond Virginia USA
30. University of Rochester Medical Center Rochester New York USA
31. University of Texas Southwestern Medical Center Dallas Texas USA
32. Johns Hopkins University School of Medicine Baltimore Maryland USA
33. Ziekenhuis Oost‐Limburg Genk Belgium and Hasselt University Hasselt Belgium
34. Sungkyunkwan University School of Medicine, Samsung Medical Center Seoul Republic of Korea
35. QEII Health Sciences Center Halifax Nova Scotia Canada
36. Clinica Corazones Unidos Santo Domingo Dominican Republic
37. Australian National University, Canberra Hospital Garran Australian Capital Territory Australia
38. Santojanni Hospital Buenos Aires Argentina
39. Yale University School of Medicine New Haven Connecticut USA
40. National University Hospital Singapore Singapore
41. Mayo Clinic Phoenix Arizona USA
42. Tokyo Women's Medical University Tokyo Japan
43. Massachusetts General Hospital, Harvard Medical School Boston Massachusetts USA
44. Weill Cornell Medicine Population Health Sciences New York New York USA
45. University of California Davis Sacramento California USA
46. Oregon Health & Science University Portland Oregon USA
47. Indiana University Indianapolis Indiana USA
48. Fundación Cardioinfantil Instituto de Cardiologia Bogotá Colombia
49. George Washington University Washington District of Columbia USA
50. University of Chicago Medicine Chicago Illinois USA
51. Cardiovascular Research Institute Maastricht, Maastricht University Medical Center Maastricht The Netherlands
52. Geisinger Health System Wilkes‐Barre Pennsylvania USA
53. Dartmouth Hitchcock Medical Center New Hampshire Lebanon