TI - Assessment of the effects of frequent ventricular extrasystoles on the left ventricle using speckle tracking echocardiography in apparently normal hearts AU - Barutçu, A. AU - Bekler, A. AU - Temiz, A. AU - Kırılmaz, B. AU - Gazi, E. AU - Altun, B. AU - Özdemir, S. AU - Ulusoy Aksu, F. SO - The Anatolian Journal of Cardiology 2016;16:48-54. DO - 10.5152/akd.2015.6166