American Journal of Obstetrics and Gynecology
American Journal of Obstetrics and Gynecology > 2014 > 210 > 2 > e1-e2
American Journal of Obstetrics and Gynecology > 2014 > 210 > 3 > 275.e1-275.e9
American Journal of Obstetrics and Gynecology > 2014 > 210 > 2 > e1-e2
American Journal of Obstetrics and Gynecology > 2014 > 210 > 3 > 275.e1-275.e9