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Journal of Huazhong University of Science and Technology [Medical Sciences] > 2015 > 35 > 6 > 801-807
American Journal of Obstetrics and Gynecology > 1998 > 179 > 4 > 946-951
Journal of Huazhong University of Science and Technology [Medical Sciences] > 2015 > 35 > 6 > 801-807
American Journal of Obstetrics and Gynecology > 1998 > 179 > 4 > 946-951