1. Department of Cardiology, Evliya Çelebi Training and Research Hospital, 43050 Kütahya, Turkey
2. Department of Cardiology, İskilip Atıf Hoca State Hospital, 19480 Çorum, Turkey
3. Department of Cardiology, Kosuyolu Kartal Heart Training and Research Hospital, 34718 Istanbul, Turkey
4. Department of Cardiology, Faculty of Medicine, Kars Kafkas University, 36200 Kars, Turkey