1. Arrhythmia Section, Division of CardiologyZentralklinik Bad BerkaBad Berka Germany
2. Department of Life Health and Environmental SciencesUniversity of L'AquilaL'Aquila Italy
3. Division of CardiologyZentralklinik Bad BerkaBad Berka Germany
4. Faculty of MedicineOtto‐von‐Guericke UniversityMagdeburg Germany