American Journal of Obstetrics and Gynecology
American Journal of Obstetrics and Gynecology > 2010 > 202 > 1 > 33.e1-33.e6
American Journal of Obstetrics and Gynecology > 2010 > 203 > 1 > 26.e1-26.e6
American Journal of Obstetrics and Gynecology > 2010 > 203 > 2 > 111.e1-111.e3
American Journal of Obstetrics and Gynecology > 2010 > 203 > 2 > 165.e1-165.e7
American Journal of Obstetrics and Gynecology > 2010 > 203 > 5 > 442.e1-442.e4