Sun Hee Park, Young Ae Yang, Kyu Yeon Kim, Sang Mi Park, Hong Nyun Kim, Jae Hee Kim, Se Yong Jang, Myung Hwan Bae, Jang Hoon Lee, Dong Heon Yang

J Cardiovasc Ultrasound.2015;23(2):78-85.   Published online 2015 June 26     DOI: http://dx.doi.org/10.4250/jcu.2015.23.2.78