American Journal of Obstetrics and Gynecology
American Journal of Obstetrics and Gynecology > 2017 > 216 > 5 > 514.e1-514.e17
American Journal of Obstetrics and Gynecology > 2017 > 217 > 3 > 350.e1-350.e13
American Journal of Obstetrics and Gynecology > 2017 > 217 > 4 > 457.e1-457.e13
American Journal of Obstetrics and Gynecology > 2017 > 217 > 4 > 465.e1-465.e5