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Korean J Obstet Gynecol. 2004;47(8):1606-1610. Published online August 1, 2004
Young Shin Kim, Hwa Won Kim, Jae Hyung Yu, Jeong Kyung Lee, Chang Seong Kang, Sung Chul Park, Young Jae Kim, Jong Kyou Park, Byung Du Lee, Hae Sung Kim
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