Su Seon Kim, In Ho Jo, Eun Jeong Jeong, Young Jin Seo, Jung Mi Byun, Dae Hoon Jeong, Moon Su Sung, Ki Tae Kim, Kyung Bok Lee

Korean J Obstet Gynecol.2012;55(12):1039-1042.   Published online 2012 December 18     DOI: http://dx.doi.org/10.5468/KJOG.2012.55.12.1039