1. Department of Cardiology, Dr. Siyami Ersek Thoracic and Cardiovascular Surgery Training and Research Hospital, Istanbul, Turkey
2. Department of Cardiology, Sureyyapasa Chest Diseases and Thoracic Surgery Training and Research Hospital, Istanbul, Turkey
3. Department of Cardiology, Kartal Kosuyolu Research and Education Hospital, Kartal, Turkey
4. Cardiology, Biostatistics, Hisar Intercontinental Hospital, Nisantasi University Medical School, Turkey