Katherine Pak, Su Jung Kim, Ha Jung Lim, Eun Jeong Kim, Won Sik Lee, Min Jeong Oh, June Seek Choi, Hur Kuol, Sang Hee Jung, Hyun Kyong Ahn, Jung Yeol Han, Moon Young Kim, Hyun Mee Ryu, Kyu Hong Choi, Jae Hyug Yang
Korean J Obstet Gynecol. 2002;45(9):1485-1490. Published online September 1, 2002