Ozcan Cetin, Elif Hande Özçelik, Fatih Ozcem, Barcin, near east university hospital Özdemir, Emre Ozdemir, Murat, Gazi University Medical Faculty, Department of Cardiology, Ankara, Turkey. Ozdemir, Osman Ozdemir, Ramazan Ozden, Kivilcim, Department of Cardiology, Siyami Ersek Cardiovascular and Thoracic Surgery Training and Research Hospital Ozden Tok, Ozge, Istanbul University, Cerrahpasa Faculty of Medicine, Department of Cardiology Ozdowska, Patrycja, Institute of Cardiology Ożdżeńska−Milke, Ewa Ożegowski, Stefan Özeke, Özcan Ozeke, Ozcan Ozeke, Ozcan Ozel, Deniz, Akdeniz University Faculty of Medicine Ozer, Leyla, Istanbul University, Istanbul Medicine Faculty Ozer, Mehmet Ozer, Orhan Ozerdem, Gokhan, Ozel Sevgi Hospital Özgür Barış, Veysel Ozhan, Hakan, Department of Cardiology, Duzce University School of Medicine Hospital, Duzce. Ozhan, Hakan Ozierański, Krzysztof, I Katedra i Klinika Kardiologii Warszawski Uniwersytet Medyczny Ozierański, Krzysztof, 1st Chair and Department of Cardiology, Medical University of Warsaw, Warsaw, Poland (Poland)