1. Erasmus Medical Center, Department of Cardiology, Electrophysiology, Rotterdam, Netherlands
2. Erasmus Medical Center, Department of Epidemiology, Rotterdam, Netherlands
3. Erasmus Medical Center, Department of Biomedicine, Rotterdam, Netherlands
4. Gottsegen György National Cardiology Institute, Department of Electrophysiology, Budapest, Hungary
5. Department of Clinical Electrophysiology, Erasmus MC, Postbus 2040, 3000 CA Rotterdam, Netherlands