1. Texas Cardiac Arrhythmia Institute at St. David's Medical Center; Austin Texas USA
2. Heart Institute, Faculty of Medicine; University of Pecs; Pecs Hungary
3. Department of Biomedical Engineering; University of Texas; Austin Texas USA
4. Department of Cardiology; University of Foggia; Foggia Italy
5. Albert Einstein College of Medicine at Montefiore Hospital; New York USA
6. Department of Cardiology; Center of Atrial Fibrillation, Beijing Anzhen Hospital, Capital Medical University; Beijing China