1. First Department of Cardiology, AHEPA University Hospital, Thessaloniki, Greece (N.V.K., G.S.).
2. Medizinische Klinik I, Klinikum Darmstadt GmbH, Germany (G.S.W.).
3. Second Department of Cardiology, Attikon University Hospital, Athens, Greece (S.D., G.G.).
4. Division of Structural Interventional Cardiology, Careggi University Hospital, Florence, Italy (C.D.M.).
5. Department of Clinical and Experimental Medicine, Cannizzaro Hospital, University of Catania, Italy (A.R.G.).
6. Interventional Cardiology Department, University Heart Center Freiburg, Bad-Krozingen, Germany (J.H.B.).
7. Interventional Cardiology Department, Arnaud Tzanck Institut, Saint Laurent du Var, France (A.A.).
8. Department of Cardiology, Main Taunus Heart Institute, Bad Soden, Germany (N.R.).
9. Department of Cardiology, Istanbul Memorial Hospital, Turkey (O.G.).
10. Interventional Cardiology Department, Ospedale San Giovanni Bosco, Torino, Italy (R.G.).
11. Medizinische Klinik I, HELIOS Klinikum, Wuppertal, Germany (A.B.).
12. Department of Cardiology and Angiology II, University Heart center Freiburg, Bad-Krozingen, Germany (K.M.).
13. Department of Cardiology, Rangueil University Hospital, Toulouse, France (N.B.).
14. Klinik Kardiologie Augusta Krankenhaus, Dusseldorf, Germany (M.M.-G.).
15. Division of Cardiology, Zentralklinik Bad Berka, Germany (B.L.).
16. Department of Cardiology, CH-de-Lagny, Lagny-sur-Marne, France (S.E.).
17. Department of Cardiology, Aarhus University Hospital, Denmark (E.H.C.).
18. Interventional Cardiology Department, Hospital Clinico San Carlos, Madrid, Spain (J.E.).
19. Department of Cardiology, Brighton and Sussex University Hospitals, United Kingdom (D.H.-S.).
20. Invasive Cardiology Unit, San Raffaele Hospital, Milan, Italy (M.C.).
21. Institut Hospitalier Jacques Cartier, Massy, France (Y.L., T.L.).
22. School of Informatics, Aristotle University of Thessaloniki, Greece (L.A.).