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• Korean Journal of Obstetrics and Gynecology   1989  Volume.32  No.6 872 ~ 878

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• Korean Journal of Obstetrics and Gynecology   1989  Volume.32  No.6 867 ~ 871

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• Korean Journal of Obstetrics and Gynecology   1989  Volume.32  No.6 861 ~ 866

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• Korean Journal of Obstetrics and Gynecology   1989  Volume.32  No.6 855 ~ 860

• Korean Journal of Obstetrics and Gynecology   1989  Volume.32  No.6 846 ~ 854

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• Korean Journal of Obstetrics and Gynecology   1989  Volume.32  No.6 842 ~ 845

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• Korean Journal of Obstetrics and Gynecology   1989  Volume.32  No.6 834 ~ 841

• Hong Young-Seuk, , 

• Korean Journal of Obstetrics and Gynecology   1989  Volume.32  No.6 826 ~ 833

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• Korean Journal of Obstetrics and Gynecology   1989  Volume.32  No.6 817 ~ 825

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• Korean Journal of Obstetrics and Gynecology   1989  Volume.32  No.6 807 ~ 816

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• Korean Journal of Obstetrics and Gynecology   1989  Volume.32  No.6 798 ~ 806

• Korean Journal of Obstetrics and Gynecology   1989  Volume.32  No.6 789 ~ 797

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• Korean Journal of Obstetrics and Gynecology   1989  Volume.32  No.6 778 ~ 788

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• Korean Journal of Obstetrics and Gynecology   1989  Volume.32  No.6 764 ~ 777

• Korean Journal of Obstetrics and Gynecology   1989  Volume.32  No.6 756 ~ 763

• Korean Journal of Obstetrics and Gynecology   1989  Volume.32  No.6 741 ~ 755

• Korean Journal of Obstetrics and Gynecology   1989  Volume.32  No.6 733 ~ 740