1. Division of Cardiovascular Medicine, Department of Medicine, University of Florida, Gainesville
2. Comprehensive Stroke Center, David Geffen School of Medicine, Department of Neurology, University of California, Los Angeles, Los Angeles
3. Children's Hospital of Georgia, Department of Pediatric Cardiology, Augusta University, Augusta, Georgia
4. Division of Cardiovascular Medicine, Department of Medicine, Ohio State University, Columbus
5. Division of Cardiology, Department of Medicine, University of Colorado, Denver, Aurora
6. Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
7. Cardiovascular Center Frankfurt, Frankfurt, Germany
8. Anglia Ruskin University, Chelmsford, United Kingdom
9. Division of Cardiovascular Medicine, Department of Medicine, Virginia Commonwealth University, Richmond
10. Sidra Heart Center, Sidra Medicine, Weill Cornell Medical College, Doha, Qatar
11. Toronto Congenital Cardiac Centre for Adults, Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
12. Perelman School of Medicine, Department of Neurology, University of Pennsylvania, Philadelphia
13. Department of Neurology, Tufts University School of Medicine, Boston, Massachusetts
14. David Geffen School of Medicine, Division of Cardiology, Department of Medicine, University of California, Los Angeles, Los Angeles
15. Division of Cardiology, Rush University Medical Center, Chicago, Illinois
16. Department of Neurology, Oregon Health & Science University, Portland
17. Sainte-Anne Hospital, Department of Neurology, Département Hospitalo-Universitaire NeuroVasc Sorbonne Paris-Cité, Institut National de la Santé et de la Recherche Médicale 894, Paris, France
18. Department of Neurology, University Hospital of Bern, Bern, Switzerland
19. Department of Cardiology, University Hospital of Bern, Bern, Switzerland
20. Department of Medicine, University of Florida, Gainesville
21. Division of Cardiology, Department of Medicine, University of Washington Medical Center, Seattle
22. CardioVascular Center Zurich, Hirslanden Klinik Im Park, Zürich, Switzerland
23. Medical University of South Carolina, Charleston
24. Herbert and Sandi Feinberg Interventional Cardiology and Heart Valve Center, Columbia University Medical Center, New York, New York
25. Department of Cardiology, Rigshospitalet, Copenhagen, Denmark