1. Department of Cardiology (H.Y., U.C., K.A.), Hacettepe University, Faculty of Medicine, Ankara, Turkey.
2. Department of Cardiology, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, the Netherlands (H.Y.).
3. Leviev Heart Institute, Sheba Medical Center, Sackler School of Medicine, Tel Aviv University, Israel (E.N., R.B.).
4. Department of Cardiovascular and Thoracic Surgery (A.A., T.S.), Hacettepe University, Faculty of Medicine, Ankara, Turkey.