1. Department of Cardiology and Angiology, Märkische Kliniken GmbHKlinikum Lüdenscheid Lüdenscheid Germany
2. Witten/Herdecke University Witten Germany
3. Division of Electrophysiology, Department of Cardiovascular MedicineUniversity of Münster Münster Germany
4. Department of CardiologyDiakonie Jung‐Stilling Hospital Siegen Germany