Jin Oh Na, Eung Ju Kim, Sun Joung Mun, Eun Hee Choi, Jin Hee Mun, Hye Ra Lee, Yun Kyung Kim, Hwan Seok Yong

J Cardiovasc Ultrasound.2011;19(3):156-158.   Published online 2011 September 30     DOI: http://dx.doi.org/10.4250/jcu.2011.19.3.156