1. Department of Cardiology Gumushane State Hospital Gumushane Turkey
2. Department of Cardiology Kartal Koşuyolu Heart and Vascular Disease Research and Training Hospital Istanbul Turkey
3. Faculty of Medicine, Department of Cardiology Abant Izzet Baysal University Bolu Turkey
4. Department of Cardiology Siyami Ersek Heart and Vascular Disease Research and Training Hospital Istanbul Turkey
5. Faculty of Medicine, Department of Cardiology Karadeniz Technical University Trabzon Turkey