1. Department of Cardiology, St. Antonius Ziekenhuis, PO Box 2500, 3430 EM, Nieuwegein, The Netherlands
2. Cardiology Department, Amsterdam, UMC, The Netherlands
3. Cardiology Department, Chair and Department of Cardiology, Medical University of Warsaw, Poland
4. Cardiology Department, Pugliese-Ciaccio Hospital, Catanzaro, Italy
5. Cardiology Department, Centro Hospitalar Lisboa Norte—Hospital de Santa Maria E.P.E., Lisboa, Portugal
6. Cardiology Department, Evangelisches Krankenhaus Düsseldorf, Düsseldorf, Germany
7. Cardiology Department, Universitätsklinikum Münster, Münster, Germany
8. Cardiology Department, Medtronic, Inc
9. Cardiology Department, Keimyung University Dongsan Hospital, Daegu, South Korea
10. Cardiology Department, A.O. Osped. S.Gerardo, Monza, Italy
11. Cardiology Department, Hospital Universitario 12 de Octubre, Madrid, Spain
12. Cardiology Department, Hirslanden-Klinik Im Park Zürich, Zürich, Switzerland
13. Cardiology Department, University of Debrecen, Debrecen, Hungary
14. Cardiology Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain
15. Cardiology Department, Ospedale S. Camillo, Rome, Italy
16. Cardiology Department, St. Vincenz-Krankenhaus Paderborn, Medizinische Klinik II, Paderborn, Germany