Gueret, Pascal Gugała, Kamil Gugnowski, Zbigniew Gul, Enes Elvin Gül, İlker, Ahi Evren Chest and Cardiovascular Surgery Education and Research Hospital, Department of Cardiology,Trabzon, Turkey Gül, Mehmet, Department of Cardiology, Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Center, Training and Research Hospital, Istanbul/TURKEY Gul, Mehmet, Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Center, Training and Research Hospital, Department of Cardiology, Istanbul Gulácsi, László Gulasti, Sevil Guler, Adem Guler, Ahmet, Kartal Kosuyolu Heart and Research Hospital Güler, Arda Guler, Ekrem, Medipol University Guler, Ekrem, ISTANBUL MEDİPOL UNIVERSITY Guler, Gamze Babur, Atatürk State Hospital Guler, Gamze Babur, Istanbul Medipol University Guler, Tolga Guler, Tumer Erdem Guler, Yeliz Guliyev, İlkin, Diskapi Yildirim Beyazit Training and Research Hospital, Department of Cardiology, Ankara, Turkey Gulletta, Simone Güllü, Ümit, Acibadem University, School of Medicine, Department of Cardiovascular Surgery Gülşen, Kamil, Near East University, Department of Cardiology Gulsen, Kamil, near east university hospital Gumbiene, Lina