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A. Wakimoto
Department of Obstetrics and Gynecology, Osaka University Medical School
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K. Ohashi
Department of Obstetrics and Gynecology, Osaka University Medical School
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F. Saji
Department of Obstetrics and Gynecology, Osaka University Medical School
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O. Tanizawa
Department of Obstetrics and Gynecology, Osaka University Medical School