American Journal of Obstetrics and Gynecology
American Journal of Obstetrics and Gynecology > 2005 > 193 > 4 > 1429-1436
American Journal of Obstetrics and Gynecology > 2005 > 193 > 4 > 1513-1516
American Journal of Obstetrics and Gynecology > 2005 > 193 > 4 > 1429-1436
American Journal of Obstetrics and Gynecology > 2005 > 193 > 4 > 1513-1516