1. First Department of Cardiology, Hippokration Hospital, National and Kapodistrian University of Athens , 114 Vas. Sofias Avenue, 11527 Athens , Greece
2. Electrophysiology and Pacing Laboratory, Athens Heart Centre, Athens Medical Center, Marousi , Attica , Greece
3. Politecnico di Milano, Department of Electronics, Information and Biomedical Engineering , Milan , Italy
4. National Council of Research, Institute of Electronics, Information and Telecommunication Engineering , Milan , Italy
5. Department of Cardiology, Erasme Hospital, Université Libre de Bruxelles , Brussels , Belgium
6. ITACA Institute, Universitat Politècnica de València, Camino de Vera s/n , Valencia , Spain
7. CARIM School for Cardiovascular Diseases, Maastricht University Medical Center , Maastricht , The Netherlands
8. Department of Cardiology, Royal Brompton Hospital , London , United Kingdom
9. Berlin Institute of Health at Charité—Universitätsmedizin Berlin, BIH Center for Regenerative Therapies (BCRT) , Charitéplatz 1, 10117 Berlin , Germany
10. Department of Cardiology (Virchow Klinikum), and Center for Stroke Research Berlin, Charité Universitätsmedizin Berlin, and German Centre for Cardiovascular Research (DZHK) , partner site Berlin , Germany
11. Cardiology and Arrhythmology Clinic, Marche Polytechnic University, University Hospital ‘Ospedali Riuniti Umberto I—Lancisi—Salesi’ , Ancona , Italy
12. Department of Cardiology, Copenhagen University Hospital Amager & Hvidovre , Denmark
13. DMS in Zabrze, Department of Cardiology, Medical University of Silesia , Katowice , Poland
14. Arrhythmology & Electrophysiology Department, IRCCS Policlinico San Donato , Milan , Italy
15. Department of Cardiology, Clinical Sciences, Lund University Hospital , Lund , Sweden
16. Cardiology Clinic, Heart and Brain Centre of Excellence—University Hospital, Medical University Pleven , Pleven , Bulgaria
17. Department of Cardiology, University Heart and Vascular Centre Hamburg-Eppendorf , Hamburg , Germany
18. German Center for Cardiovascular Research (DZHK) partner site , Hamburg/Kiel/Lübeck , Germany
19. Department of Cardiology, Amsterdam University Medical Center , Amsterdam , The Netherlands
20. Second Department of Neurology, ‘Attikon’ University Hospital, School of Medicine, National and Kapodistrian University of Athens , Athens , Greece
21. Department of Neurology, University of Tennessee Health Science Center , Memphis, TN , USA