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Hiroko KOMURA
Faculty of Human Science, Osaka Shoin Women's University
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Miho KATAYAMA
Department of Obstetrics and Gynecology, Hannan Chuo Hospital
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Kinuyo KITADA
Department of Obstetrics and Gynecology, Hannan Chuo Hospital
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Haruko KATOH
Department of Obstetrics and Gynecology, Hannan Chuo Hospital