Affiliation: | 1. Division of Electryophysiology, Department of Cardiovascular Medicine, University of Münster, Münster, Germany;2. M?rkische Kliniken GmbH, Department of Cardiology and Angiology, Klinikum Lüdenscheid, Lüdenscheid, Germany;3. Department of Cardiology, University Witten/Herdecke, Witten, Germany;4. University Clinic of Gie?en, Medical Clinic I, Department of Cardiology and Angiology, Gie?en, Germany;5. Kerckhoff Heart and Thorax Center, Department of Cardiology, Bad Nauheim, Germany;6. Department of Cardiology, Helios Klinikum Wuppertal, Germany |