1. 3rd Department of Internal Medicine and Cardiology, Medical University of Warsaw, 2 Bursztynowa St., 04-749 Warsaw, Poland
2. Department of Cardiology and Internal Medicine, Multidisciplinary Hospital Warsaw Miedzylesie, 2 Bursztynowa St., 04-749 Warsaw, Poland
3. Department of Cardiology and Internal Diseases, Military Institute of Medicine, 128 Szaserów St., 04-141 Warsaw, Poland
4. Department of General and Transplantation Surgery, The Medical University of Warsaw, 59 Nowogrodzka St., 02-006 Warsaw, Poland