Se Gwang Kim, Young Nae Jung, Hyun Chul Jung, Kyu Hyun Park, Chang Han Kim, Jee Hyun Park, Sung Hoon Kim, Jung Yeon Kim, Sang Wook Bae, Gee Hyun Park, Dong Je Jo, Chan Ho Song
Korean J Obstet Gynecol. 2000;43(8):1431-1436. Published online January 1, 2001