Balcarek, Janusz Balcerzak, Marek Balcerzyk, Anna Balci, Bahattin Balci, Kevser G., Turkiye Yuksek Ihtisas Education and Research Hospital, Ankara, Turkey Balci, Mustafa M., Turkiye Yuksek Ihtisas Education and Research Hospital Balci, Mustafa M. Baldo, Marcelo Perim Baldus, Stephan Baldus, Stephan Balen, Sanja, 1. Department of Cardiology, University Hospital “Thalassotherapia Opatija”, Medical Faculty University of Rijeka; Croatia 2. Department of Internal medicine, University hospital Osijek, Medical Faculty JJ Strossmayer University of Osijek; Croatia Baliński, Marek Baliński, Marek Balogh, László Balsam, Paweł, 1st Chair and Department of Cardiology, Medical University of Warsaw, Warsaw, Poland Balsam, Paweł, 1st Chair and Department of Cardiology Medical University of Warsaw (Poland) Balsam, Paweł, I Katedra i Klinika Kardiologii, Warszawski Uniwersytet Medyczny Balsam, Paweł, 1st Chair and Department of Cardiology, Medical University of Warsaw, Warsaw, Poland (Poland) Balsam, Paweł, 1st Department of Cardiology, Medical University of Warsaw Balsam, Paweł, I Katedra i Klinika Kardiologii Warszawski Uniwersytet Medyczny (Poland) Balsam, Paweł Balsam, Paweł (Poland) Balsam, Paweł, Medical University of Warsaw Balsam, Paweł Balta, Sevket