American Journal of Obstetrics and Gynecology
American Journal of Obstetrics and Gynecology > 2017 > 216 > 4 > 340-351
American Journal of Obstetrics and Gynecology > 2017 > 216 > 6 > 606.e1-606.e10
American Journal of Obstetrics and Gynecology > 2017 > 216 > 4 > 340-351
American Journal of Obstetrics and Gynecology > 2017 > 216 > 6 > 606.e1-606.e10