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
Hee Jeong Yu, Byung Hoon Kim, Su Mi Bae, Young Wook Kim, Joon Mo Lee, Sung Eun Namkoong, Heung Jea Chun, Kye Hyun Nam, Young Lae Cho, Chong Kook Kim, Byoung Don Han, Woong Shick Ahn
Korean J Obstet Gynecol. 2005;48(3):617-627. Published online March 1, 2005