Gumkowska, Anna Gummert, Jan, Heart and Cardiovascular Centre North Rhine-Westphalia Ruhr University Bochum Germany Department of Cardiovascular Surgery Gummert, Jan Gummert, Jan F., Heart and Cardiovascular Centre Nordrhein-Westfalen Ruhr University Bochum Germany Department of Cardiovascular Surgery, 32545 Bad Oeynhausen, Georgstr. 11, Germany Gumprecht, Jakub Gumprecht, Janusz Gumprecht, Janusz Gumułka, Witold Gun, Ismet, Sultan Abdülhamid Han Training and Research Hospital, Department of Obstetrics and Gynecology, İstanbul, Gunaydın, Senay, Department of Cardiology, Okmeydanı Training and Research Hospital, Istanbul Günaydın, Zeki Yüksel, Department of Cardiology, Ordu University, Ordu, Turkey Gündoğmuş, Pınar Demir Gündüz, Ramazan Gunduz, Sabahattin, Department of Cardiology, Kartal Koşuyolu Research and Training Hospital Gunebakmaz, Ozgur, Harran university, medicine faculty, departamant of cardiology Guner, Ahmet Güner, Ahmet Güner, Ahmet Guner, Ahmet Güner, Ezgi G. Güner, Ezgi Gültekin Günertem, Eren Gunes, Haci Murat, Koşuyolu Heart Research Hospital Gunes, Haci Murat, ISTANBUL MEDIPOL UNIVERSITY Güneş, Hakan, Sivas Numune Hospital