American Journal of Obstetrics and Gynecology
American Journal of Obstetrics and Gynecology > 2013 > 208 > 1 > 79.e1-79.e7
American Journal of Obstetrics and Gynecology > 2016 > 214 > 6 > 708.e1-708.e5
American Journal of Obstetrics and Gynecology > 2013 > 208 > 1 > 79.e1-79.e7
American Journal of Obstetrics and Gynecology > 2016 > 214 > 6 > 708.e1-708.e5