Hye Eun Park, Jung Ryeol Lee, Young Sik Choi, Joong Yeup Lee, Jae Hoon Jung, Byung Chul Jee, Seung Yup Ku, Chang Suk Suh, Ki Chul Kim, Eung Gi Min, Won Don Lee, Seok Hyun Kim
Korean J Obstet Gynecol. 2007;50(4):653-659. Published online April 1, 2007