American Journal of Obstetrics and Gynecology
American Journal of Obstetrics and Gynecology > 2013 > 208 > 3 > 203.e1-203.e10
American Journal of Obstetrics and Gynecology > 2013 > 208 > 4 > 255-259
American Journal of Obstetrics and Gynecology > 2013 > 209 > 1 > 65.e1-65.e9
American Journal of Obstetrics and Gynecology > 2013 > 209 > 5 > 440.e1-440.e9
American Journal of Obstetrics and Gynecology > 2013 > 209 > 6 > 546.e1-546.e6