Young Kuk Cho, Young-Ok Kim, Woo-Yeon Choi, Ic Sun Choi, Dong-Kyun Han, Hee-Jo Baek, Yong Wook Kim, Chung Il Noh, Jae Sook Ma

J Cardiovasc Ultrasound.2008;16(2):54-58.   Published online 2008 June 30     DOI: http://dx.doi.org/10.4250/jcu.2008.16.2.54