1. Department of Cardiac Surgery and Transplantology, National Institute of Cardiology, 42 Alpejska Street, 04-628 Warsaw, Poland
2. 1st Department of Arrhythmia, National Institute of Cardiology, 42 Alpejska Street, 04-628 Warsaw, Poland
3. Doctoral School, Medical University of Warsaw, 61 Zwirki I Wigury Street, 02-091 Warsaw, Poland
4. Department of Coronary Artery Disease and Cardiac Rehabilitation, National Institute of Cardiology, 42 Alpejska Street, 04-628 Warsaw, Poland