1. Clinic for Cardiology University Heart and Vascular Center Hamburg Germany
2. German Center for Cardiovascular Research (DZHK) Berlin Germany
3. Department of Cardiology Leiden University Medical Center Leiden Netherlands
4. Department of Cardiology Asklepios Klinik St. Georg Hamburg Germany
5. Division of Cardiology, Cardiac Neuro‐ and Electrophysiology Research Consortium EVK Düsseldorf Düsseldorf Germany
6. Boston Scientific Marlborough Massachusetts USA
7. Institute of Neuronal and Sensory Physiology, Cardiac Neuro‐ and Electrophysiology Research Consortium, Medical Faculty Heinrich Heine University Düsseldorf Düsseldorf Germany