Young Joon Park, Yoo Seock Ree, Gyu Rak Lee, Young Jae Kim, Keon Ho Park, Seong Hee Kim, Jin Sil Park, Min Soo Park, Hyun Hee Kim, Jeong Kyu Hoh, Sam Hyun Cho, Kyung Tai Kim
Korean J Obstet Gynecol. 2003;46(9):1693-1701. Published online September 1, 2003