American Journal of Obstetrics and Gynecology
American Journal of Obstetrics and Gynecology > 2017 > 216 > 1 > 62.e1-62.e14
American Journal of Obstetrics and Gynecology > 2017 > 216 > 3 > 285.e1-285.e6
American Journal of Obstetrics and Gynecology > 2017 > 216 > 3 > 296.e1-296.e14
American Journal of Obstetrics and Gynecology > 2017 > 216 > 5 > 521.e1-521.e13