American Journal of Obstetrics and Gynecology
American Journal of Obstetrics and Gynecology > 2009 > 200 > 3 > 254.e1-254.e13
American Journal of Obstetrics and Gynecology > 2009 > 200 > 3 > 293.e1-293.e7
American Journal of Obstetrics and Gynecology > 2009 > 200 > 3 > 338.e1-338.e4
American Journal of Obstetrics and Gynecology > 2009 > 200 > 3 > 267.e1-267.e7
American Journal of Obstetrics and Gynecology > 2009 > 200 > 3 > 225-232
American Journal of Obstetrics and Gynecology > 2009 > 200 > 3 > 286.e1-286.e6
American Journal of Obstetrics and Gynecology > 2009 > 200 > 3 > 263.e1-263.e6
American Journal of Obstetrics and Gynecology > 2009 > 200 > 3 > 315.e1-315.e8
American Journal of Obstetrics and Gynecology > 2009 > 200 > 3 > 273.e1-273.e25
American Journal of Obstetrics and Gynecology > 2009 > 200 > 3 > 265.e1-265.e4
American Journal of Obstetrics and Gynecology > 2009 > 200 > 3 > 334.e1-334.e8
American Journal of Obstetrics and Gynecology > 2009 > 200 > 3 > 296.e1-296.e9
American Journal of Obstetrics and Gynecology > 2009 > 200 > 3 > 313.e1-313.e6
American Journal of Obstetrics and Gynecology > 2009 > 200 > 3 > 260.e1-260.e6
American Journal of Obstetrics and Gynecology > 2009 > 200 > 4 > 462.e1-462.e6
American Journal of Obstetrics and Gynecology > 2009 > 200 > 4 > 415.e1-415.e5