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Ultrasound in Obstetrics & Gynecology > 39 > 1 > 63 - 68
American Journal of Obstetrics and Gynecology > 2005 > 192 > 3 > 892-902
Ultrasound in Obstetrics & Gynecology > 39 > 1 > 63 - 68
American Journal of Obstetrics and Gynecology > 2005 > 192 > 3 > 892-902