TY - JOUR TI - Assessment of tissue Doppler parameters via transesophageal echocardiography: how necessary? AU - Ceyhan, K. AU - Altunkaş, F. JO - The Anatolian Journal of Cardiology PY - 2012 VL - 12 SP - 480 EP - 482 DO - 10.5152/akd.2012.154 ER -