Dong-Hwi Kim, Jeong-Eun Yi, Hyun Ji In, Minyeong Jeong, Moon Sung Kim, Joune Seup Lee, Jong Hoon Lee, Borami Kang, Hae-Ok Jung, Ho-Joong Youn

J Cardiovasc Ultrasound.2013;21(4):186-188.   Published online 2013 December 27     DOI: http://dx.doi.org/10.4250/jcu.2013.21.4.186