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International Journal of Gynecology and Obstetrics > 2015 > 129 > 3 > 199-202
International Journal of Gynecology and Obstetrics > 2007 > 98 > 2 > 124-128
International Journal of Gynecology and Obstetrics > 2015 > 129 > 3 > 199-202
International Journal of Gynecology and Obstetrics > 2007 > 98 > 2 > 124-128