Oner, Ender, Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Training and Research Hospital, Department of Cardiology, Istanbul Oner, Naci Ong, Wilson Ono, Kenshi Onofri, Marco Onoue, Kenji Ootsuji, Hiroshi, Department of Disease Control and Homeostasis, Kanazawa University Graduate School of Medical Science, Kanazawa, Ishikawa, Japan Opadijo, George Opalińska, Edyta Opara, Mariusz Opielowska-Nowak, Barbara Opitz, Karena Opolski, Dagna Bobilewicz i Grzegorz Opolski, Daniel Rabczenko i Grzegorz Opolski, Dariusz Dudek i Grzegorz Opolski, Dariusz Kozłowski i Grzegorz Opolski, Grzegorz Opolski, Grzegorz Opolski, Grzegorz, Warszawski Uniwersytet Medyczny (Poland) Opolski, Grzegorz, Warsaw Medical University 1st Department of Cardiology Opolski, Grzegorz, 1st Chair and Departament of Cardiology, Medical University of Warsaw Opolski, Grzegorz, 1st Department of Cardiology, Medical University of Warsaw 02-097 Warsaw Opolski, Grzegorz, 1st Department of Cardiology Medical University of Warsaw 1a Banacha Street 02-097 Warsaw, Poland Opolski, Grzegorz, Department of Cardiology, Medical University of Warsaw, Warsaw, Poland (Poland) Opolski, Grzegorz, 1st Department of Cardiology, Medical University of Warsaw, Warsaw, Poland