1. Jagiellonian University Medical College, Institute of Cardiology; Krakow Poland
2. Department of Invasive Cardiology; Central Clinical Hospital of the Interior Ministry; Warsaw Poland
3. Institute of Experimental and Clinical Medicine, Polish Academy of Science; Warsaw Poland
4. American Heart of Poland; Ustron Poland
5. Cardiovascular Research Foundation; New York New York
6. Krakow Cardiovascular Research Institute; Krakow Poland
7. American Heart of Poland; Katowice Poland
8. Krakow Center of Invasive Cardiology, Electrotherapy and Angiology; Krakow Poland
9. American Heart of Poland; Dabrowa Gornicza Poland