TI - Coronary venous angioplasty to a ring- like stricture preventing left ventricular lead insertion AU - Deniz, A. AU - Akkuş, O. AU - Kanadaşı, M. AU - Demir, M. SO - The Anatolian Journal of Cardiology 2013;13:390-391. DO - 10.5152/akd.2013.113