1. University of Health Science, Department of Cardiology, Istanbul Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Training and Research Hospital, Istanbul
2. Department of Cardiology, Faculty of Medicine, Hitit University, Çorum
3. Department of Cardiology, Koşuyolu Kartal Heart Training and Research Hospital, Istanbul
4. Department of Cardiology, İzmir Katip Çelebi University, Atatürk Training and Reseach Hospital, Izmir, Turkey