1. Department of Adult Cardiology, Gottsegen National Cardiovascular Center, 1096 Budapest, Hungary
2. Cardiac Electrophysiology Division, Cardiology Center, Internal Medicine Clinic, University of Szeged, 6720 Szeged, Hungary
3. Doctoral School of Clinical Medicine, University of Szeged, 6720 Szeged, Hungary
4. Department of Cardiology, Central Hospital of Northern Pest—Military Hospital, 1134 Budapest, Hungary
5. Heart and Vascular Center, Semmelweis University, 1122 Budapest, Hungary