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Korean J Obstet Gynecol. 2006;49(7):1501-1507. Published online July 1, 2006
Chang Young Kim, Kyoung Ah Song, Mi Joung Ahn, Min Kyung Song, Youn Jung Kim, Byung Chang Kim, Hyun Il Choi, Young Soo Kang, Young Hee Hwang, Sang Heum Kim, Hyun Ju Yoo
Korean J Obstet Gynecol. 2005;48(9):2233-2237. Published online September 1, 2005
Heon Jong Yoo, Young Bok Ko, Chan Jun Park, Do Young Kim, Jung Bo Yang, Kwan Seop Shin, Suk Hwan Hyun, Soon Ho Hwang, Ki Hwan Lee, Jun Kil Kang, Yun Ee Lee
Korean J Obstet Gynecol. 2005;48(9):2198-2204. Published online September 1, 2005