1. Department of Physiology, Pathophysiology and Clinical Immunology Collegium Medicum of Jan Kochanowski University Kielce Poland
2. Department of Cardiac Surgery Swietokrzyskie Cardiology Center Kielce Poland
3. 2nd Department of Cardiology, Zabrze, Faculty of Medical Science in Zabrze Medical University of Silesia Katowice Poland
4. Department of Cardiology, The Pope John Paul II Province Hospital Poland Department of Cardiology Zamość Poland
5. Department of Cardiac Surgery The Pope John Paul II Province Hospital Zamość Poland
6. Department of Cardiology Medical University of Lublin Lublin Poland