Świrta, Jarosław Szymon, Jagiellonian University Medical College, Krakow, Poland Świtalska-Janiczek, Izabela Swoboda, Katarzyna Swoboda, Ryszard, Medical University of Silesia Sydor, Wojciech, II Katedra Chorób Wewnętrznych, Uniwersytet Jagielloński Collegium Medicum Sygitowicz, Grażyna, Department of Laboratory Medicine, Biochemistry and Clinical Chemistry, Medical University of Warsaw, Warsaw, Poland Sygitowicz, Grażyna, Medical University of Warsaw Sygitowicz, Grażyna Sygitowicz, Grażyna Sygnowska, Elżbieta, Instytut Kardiologii Sygnowska, Elżbieta, Institute of Cardiology, Warsaw (Poland) Sygnowska, Elżbieta, National Institute ofCardiology, Warsaw Sygnowska, Elżbieta Sylvius, Nicolas Sylwestrzak, Oskar Sylwestrzak, Oskar Symoens, Sofie Synak, Magdalena Synowiec, Tomasz, Department of General and Vascular Surgery and Angiology, Poznan University of Medical Sciences, Poznan, Poland Synowiec, Tomasz Sysa, Andrzej, Department of Cardiology, Polish Mothers’ Memorial Hospital, Research Institute, Lodz, Poland Sysa, Andrzej Syska, Paweł, The 2nd Department of Coronary Artery Disease Institute of Cardiology 1 Spartanska street 02-637 Warsaw Poland Syska, Paweł, Institute of Cardiology, Warsaw Syska, Paweł, Institute of Cardiology