Kozierkiewicz, Adam Kozieł, Monika, Clinical Department of Cardiology Chair of Cardiology, Congenital Heart Diseases and Electrotherapy Medical University of Silesia Kozieł, Monika, Department of Cardiology, Congenital Heart Disease and Electrotherapy, Silesian Medical University, Silesian Centre for Heart Diseases (Poland) Kozieł, Monika Kozieł, Paweł Kozieł, Paweł Kozieł-Siołkowska, Monika Kozińska, Joanna Koziński, Marek Koziński, Marek, Department of Principles of Clinical Medicine, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland (Poland) Koziński, Marek Kozioł, Mateusz Koziołek, Wojciech Kózka, Mateusz Koźluk, Edward, Medical University of Warsaw Koźluk, Edward Koźluk, Edward, 1st Chair and Department of Cardiology, Medical University of Warsaw Koźluk, Edward, 1st Chair and Department of Cardiology Medical University of Warsaw (Poland) Koźluk, Edward Koźma, Małgorzata Koźmińska, Patrycja, Department of Intervetional Cardiology Carint-Scanmed, Krakow Kożuch, Katarzyna Kożuch, Katarzyna Kożuch, Marcin Kozłowska, Anna