1. University Heart Center; Department of Cardiology-Electrophysiology
2. Department of Cardiology; Asklepios Hospital St. Georg; Hamburg Germany
3. Department of Cardiology; Vivantes Hospital; Berlin Germany
4. Praxisklinik Herz und Gefäße; Dresden Germany
5. Department of Cardiology; Municipal Hospital Bogenhausen; Munich Germany
6. Westpfalz-Klinikum; Kaiserslautern Germany
7. Division of Electrophysiology, Department of Cardiology and Angiology; University Hospital; Münster Germany
8. Department of Cardiology; Hospital Coburg; Germany
9. Department of Cardiology; University Hospital; Heidelberg Germany
10. University Medical Center; Department of Cardiology-Electrophysiology; Mainz Germany
11. Institute for Research in Myocardial Infarction; Ludwigshafen Germany
12. Center for Thrombosis and Hemostasis; University Medical Center of the Johannes Gutenberg-University; Mainz Germany