1. Department of Cardiology, Bitlis State Hospital, Bitlis, Turkey
2. Hamidiye School of Medicine, Kosuyolu Heart, Education and Research Institute, University of Health Sciences, Istanbul, Turkey
3. Cardiology Department, Bitlis Tatvan State Hospital, Bitlis, Turkey
4. Department of Cardiology, Yedikule Chest Diseases and Thoracic Surgery Training and Research Hospital, Istanbul, Turkey