American Journal of Obstetrics and Gynecology
American Journal of Obstetrics and Gynecology > 2018 > 218 > 3 > 269-279
American Journal of Obstetrics and Gynecology > 2018 > 218 > 4 > 436.e1-436.e7
American Journal of Obstetrics and Gynecology > 2018 > 218 > 3 > 269-279
American Journal of Obstetrics and Gynecology > 2018 > 218 > 4 > 436.e1-436.e7