In-Soo Kim, Moo-Nyun Jin, Changho Song, Young Ju Kim, Ah-Young Ji, Jung-Woo Son, Hyuk-Jae Chang, Geu-Ru Hong, Jong-Won Ha, Namsik Chung

J Cardiovasc Ultrasound.2013;21(4):197-199.   Published online 2013 December 27     DOI: http://dx.doi.org/10.4250/jcu.2013.21.4.197