Aktaş, Halil, Çukurova University Faculty of Medicine Akture, Gulsah, Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Training and Research Hospital Akturk, Faruk, Department of Cardiology, Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Center, Training and Research Hospital, Istanbul/TURKEY Akturk, Faruk, Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Training and Research Hospital. Akturk, Ibrahim Faruk, Mehmet Akif Ersoy Thorasic and Cardiovascular Surgery Training and Research Hospital Aktürk, Müjde Akyel, Ahmet, Dışkapı Yıldırım Beyazıt Education and Research Hospital, Department of Cardiology, Ankara, Turkey. Akyel, Ahmet Akyol, Aytac, Yuzunci Yil University, Faculty of Medicine, Cardiology Department, Van Al, Behcet Al-Hwish, Mortada Al-Salem, Jawaher A. Alagöz, Mehmet Albaladejo, Pierre Albaqali, Samar Mohamed Abdulla Ali Maki Albini, Alessandro Albus, Christian Alcantara, Juan MA Aldemir, Mustafa, Afyon Koacatepe University Alejandro, Joel Aleksic, Milica Aleszewicz-Baranowska, Janina Alexandre, André Alexandrescu, Maria Alfonso, Fernando