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American Journal of Obstetrics and Gynecology > 2017 > 217 > 3 > 249-262
International Journal of Gynecology and Obstetrics > 2015 > 130 > 3 > 261-265
American Journal of Obstetrics and Gynecology > 2017 > 217 > 3 > 249-262
International Journal of Gynecology and Obstetrics > 2015 > 130 > 3 > 261-265