Hyun Jun Cho, Jae Yong Yoon, Myung Hwan Bae, Jang Hoon Lee, Dong Heon Yang, Hun Sik Park, Yongkeun Cho, Shung Chull Chae, Jae Eun Jun

J Cardiovasc Ultrasound.2012;20(4):209-212.   Published online 2012 December 31     DOI: http://dx.doi.org/10.4250/jcu.2012.20.4.209