American Journal of Obstetrics and Gynecology
American Journal of Obstetrics and Gynecology > 2017 > 216 > 3 > 226-231
American Journal of Obstetrics and Gynecology > 2017 > 216 > 4 > 418.e1-418.e5
American Journal of Obstetrics and Gynecology > 2017 > 216 > 3 > 226-231
American Journal of Obstetrics and Gynecology > 2017 > 216 > 4 > 418.e1-418.e5