Lee Ga Yeon, Chang Sung-A, Park Seung Woo
Division of Cardiology, Department of Medicine, Cardiac and Vascular Center, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
Echocardiography. 2012 Oct;29(9):E253-4. doi: 10.1111/j.1540-8175.2012.01770.x. Epub 2012 Jul 2.