1. Department of Cardiology; Division for Rhythmology and Electrophysiology; Charité Universitätsmedizin Berlin; Berlin Germany
2. Clinical Pharmacology and Toxicology; Charité Universitätsmedizin Berlin; Berlin Germany
3. Department of Clinical Epidemiology; Leibniz Institute for Prevention Research and Epidemiology; Bremen Germany
4. Faculty of Human and Health Sciences; University of Bremen; Bremen Germany