Soo Kyung Kim, Hye Kyung Byun, Su Jin Choi, Yong Seog Park, Sang Jin Song, Jin Hyun Jun, Mi Kyoung Koong, In Ok Song, Keun Jae Yoo, Kwang Moon Yang, Jin Yeong Kim, Ju Tae Seo, Inn Soo Kang
Korean J Obstet Gynecol. 2004;47(11):2167-2172. Published online November 1, 2004