American Journal of Obstetrics and Gynecology
American Journal of Obstetrics and Gynecology > 2014 > 210 > 1 > 81.e1-81.e7
American Journal of Obstetrics and Gynecology > 2014 > 210 > 3 > 213.e1-213.e7
American Journal of Obstetrics and Gynecology > 2014 > 210 > 1 > 81.e1-81.e7
American Journal of Obstetrics and Gynecology > 2014 > 210 > 3 > 213.e1-213.e7