Ozerkan, Filiz, Ege University Faculty of Medicine, Department of Cardiology, Izmir, Turkey Özhan, Hakan Ozhan, Hakan, Duzce University Medical Faculty, Department of Cardiology Ozierański, Krzysztof, Warsaw Medical University 1st Department of Cardiology Ozierański, Krzysztof, 1st Department of Cardiology, Medical University of Warsaw, Warsaw, Poland Ozierański, Krzysztof Ozierański, Krzysztof Özkan, Adem, Public Health Laboratory, Erzurum, Turkey Ozkan, Bugra Ozkan, Bugra Ozkan, Hakan, Department of Cardiology, Bahcesehir University Faculty of Medicine, Istanbul, Turkey Özkan, Mehmet Ozkan, Mehmet Ozkan, Murat, Baskent University Medical Faculty, Department of Cardiovasgular surgery, Ankara/Turkey Özkara, Asuman, Department of Biochemistry, Hacettepe University, Ankara, Turkey Özkara, Selvinaz Özkartal, Tardu, Department of Cardiology, University Heart Center Zurich, Switzerland Özkartal, Tardu Ozkutlu, Hilmi Ozlu, Fatih Ozlu, Tevfik Özmen, Namık Ozpelit, Emre, Izmir University, Department of Cardiology Ozsoy, Aybars, Kastamonu Private Anadolu Hospital, Department of Biochemsitry Ozsu, Savas