Kornacewicz-Jach, Zdzisława, Department of Cardiology, Pomeranian Medical University, Szczecin, Poland Kornacka, Iga Kornecki, Grażyna Świątecka i Stefan Kornej, Jelena Kornowski, Ran Köroğlu, Bayram, Siyami Ersek Education and Research Hospital, Department of Cardiology, İstanbul Köroğlu, Bayram, Siyami Ersek Center for Cardiovascular Surgery Korolov, Eugenio, Coronary Unit Care. Hospital Aleman. Buenos Aires. Argentina. Kortas-Stempak, Barbara Kortas-Stempak, Barbara, Department of Clinical Chemistry; Medical University of Gdańsk (Poland) Korzeniowska, Barbara Korzeniowska, Barbara Korzeniowska, Jolanta Korzeniowska-Kubacka, Iwona Korzeniowska-Kubacka, Iwona, Department of Cardiac Rehabilitation and Noninvasive Electrocardiology, Institute of Cardiology, Warszawa, Poland Korzeniowska-Kubacka, Iwona, Department of Cardiac Rehabilitation and Noninvasive Electrocardiology, Institute of Cardiology, Warsaw, (Poland) Korzeniowska-Kubacka, Iwona, Department of Cardiac Rehabilitation and Noninvasive Electrocardiology, Institute of Cardiology, Warsaw, Poland Kościelniak, Jolanta Kościelska, Małgorzata Köse, Nuri, Yücelen Hospital, Department of Cardiology, Muğla Kosiec, Agnieszka, Institute of Cardiology, ul. Alpejska 42, 04-628 Warsaw Kosieradzki, Maciej Kosiński, Adam Kosior, Dariusz Kosior, Dariusz A.