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International Journal of Gynecology and Obstetrics > 2007 > 99 > Supplement 1 > S21-S24
International Journal of Gynecology and Obstetrics > 2007 > 99 > Supplement 1 > S108-S111
International Journal of Gynecology and Obstetrics > 2007 > 99 > Supplement 1 > S143-S150