Jung Kweon Kang, In Sang Ku, Jin Young Cha, Hun Young Cho, Hyun Hee Kim, Young Jae Kim, Soo Seock Ree, Eun Kyung Bae, Young Jeong Na, Kyung Tai Kim, Soo Hyun Cho, Sam Hyun Cho, Youn Yeung Hwang, Hyung Moon
Korean J Obstet Gynecol. 2002;45(4):593-601. Published online April 1, 2002
Gyoung Hoon Lee, Yong Wook Kim, Kwang Beom Lee, Eun Jung Seo, Moon Sung Son, Hyun Gyoung Ahn, Eik Won Seok, Young Jin Choi, Gwang Jun Kim, Suk Young Kim, Byung Cheul Hwang, Yu Duk Choi, Sang Yong Kim, Seok Joon Sohn
Korean J Obstet Gynecol. 2001;44(10):1851-1856. Published online October 1, 2001