1. Department of Cardiovascular Surgery and Transplantology, Medical College, John Paul Hospital Jagiellonian University Krakow Poland
2. Institute of Cardiology Jagiellonian University Medical College Krakow Poland
3. Cardiology EP Clinic Fellow, Kansas City Heart Rhythm Institute (KCHRI) Overland Park Kansas USA
4. Department of Cardiac Electrophysiology University of California San Francisco San Francisco California USA
5. Department of Pharmacology Jagiellonian University Medical College Krakow Poland
6. Department of Metabolic Diseases Medical College, Jagiellonian University Krakow Poland
7. Kansas City Heart Rhythm Institute Overland Park Kansas USA
8. University of Missouri Columbia Missouri USA