Kalarus, Zbigniew, Department of Cardiology, Congenital Heart Disease and Electrotherapy, Silesian Medical University, Silesian Centre for Heart Diseases Kalarus, Zbigniew, Department of Cardiology, Congenital Heart Diseases, and Electrotherapy, Medical University of Silesia, Silesian Centre for Heart Diseases Kalarus, Zbigniew, Silesian Medical University Kalarus, Zbigniew, 1st Department of Cardiology, Congenital Heart Diseases and Electrotherapy, Clinical Unit of Cardiology, Silesian Centre for Heart Diseases, Medical University of Silesia, Zabrze, Poland (Poland) Kalarus, Zbigniew Kalawski, Ryszard, Oddział Kardiochirurgii, Szpital im. Józefa Strusia, Poznań, Uniwersytet Medyczny im. K. Marcinkowskiego, Poznań Kalawski, Ryszard, Wielospecjalistyczny Szpital Miejski im. J.Strusia, Uniwersytet Medyczny im. K. Marcinkowskiego Kalawski, Ryszard (Poland) Kalawski, Ryszard, Department of Cardiac Surgery, J. Struś City Hospital, Poznań Kalawski, Ryszard Kalawski, Ryszard Kalayci, Arzu, Kartal Kosuyolu Heart and Research Hospital Kalaycı, Belma Kalaycı, Süleyman Kalaycıoğlu, Ezgi, Ahi Evren Chest and Cardiovascular Surgery Education and Research Hospital, Department of Cardiology, Trabzon, Turkey Kalçık, Macit Kaldararova, Monika, National Institute of Cardiovascular Diseases – Children’s Cardiac Center, Limbova 1, 833 51 Bratislava, Slovakia Kaldararova, Monika, National Institute of Cardiovascular Diseases — Children’s Cardiac Centre, Bratislava, Slovakia Kaleta, Michał Kalicińska, Elżbieta, Ośrodek Chorób Serca, Klinika Kardiologii, 3. Klinika Chorób Serca Kalicińska, Elżbieta (Poland) Kaliciński, Zygmunt Kalińczuk, Łukasz, Institute of Cardiology, Warsaw Kalińczuk, Łukasz, Institute of Cardiology Kalińczuk, Łukasz, Department of Coronary and Structural Heart Diseases, The Cardinal Stefan Wyszyński Institute of Cardiology, Alpejska 42, 04-628 Warsaw, Poland