Guo Hua Ding, Su Mi Bae, Sun Young Kwak, Hyun Jin Min, Aery Lee, Hee Jeong Yu, Jeong Namkoong, Eun Kyeong Oh, Jae Eun Shin, Ji Hyang Choe, Seo Yun Tong, Sung Jae Shin, Yong Wan Kim, Jong Chul Shin, Byoung Don Han, Chong Kook Kim, Woong Shick Ahn
Korean J Obstet Gynecol. 2006;49(9):1881-1891. Published online September 1, 2006