Yeo-Jin Kwak, Ji Young Kim, Ji Hyun Lee, Chan-Wook Park, Joong Shin Park, Jong Kwan Jun, Hee Chul Syn

Korean J Obstet Gynecol.2011;54(10):623-625.   Published online 2011 October 19     DOI: http://dx.doi.org/10.5468/KJOG.2011.54.10.623