Koroglu, Sedat Korolko, Bożena Korona, Beata Koronkiewicz, Andrzej Korościk, Ewa Korpak-Wysocka, Renata Korsak, Anna Körtke, Heinrich, Heart and Cardiovascular Centre Nordrhein-Westfalen Ruhr University Bochum Germany Department of Cardiovascular Surgery, 32545 Bad Oeynhausen, Georgstr. 11, Germany Korycka, Anna Korycka-Wołowiec, Anna Korzeniowska, Barbara Korzeniowska-Kubacka, Iwona, Department of Cardiac Rehabilitation and Noninvasive Electrocardiology, Institute of Cardiology, Warsaw, Poland Korzeniowska-Kubacka, Iwona Korzeniowska-Kubacka, Iwona Korzeniowska−Kubacka, Iwona Korzeniowski, Krzysztof, 2nd Department of Clinical Radiology, Medical University of Warsaw, ul. Banacha 1A, Warsaw, Poland Korzeniowski, Krzysztof Korzeniowski, Krzysztof Kosacka, Urszula, Uniwersytet Medyczny Kosacka, Urszula Kosałka, Joanna, 2nd Department of Internal Medicine, Jagiellonian University Medical College, Krakow, Poland Kościański, Andrzej Kościelska-Kasprzak, Katarzyna Kosek, Mikołaj Köseoğlu, Cemal, Department of Cardiology, Ataturk Training and Research Hospital, Ankara, Turkey