American Journal of Obstetrics and Gynecology
American Journal of Obstetrics and Gynecology > 2018 > 218 > 2(S) > S869-S879
American Journal of Obstetrics and Gynecology > 2018 > 218 > 5 > 519.e1-519.e7
American Journal of Obstetrics and Gynecology > 2018 > 218 > 2(S) > S869-S879
American Journal of Obstetrics and Gynecology > 2018 > 218 > 5 > 519.e1-519.e7