American Journal of Obstetrics and Gynecology
American Journal of Obstetrics and Gynecology > 2005 > 193 > 4 > 1338-1343
American Journal of Obstetrics and Gynecology > 2005 > 193 > 4 > 1410-1414
American Journal of Obstetrics and Gynecology > 2005 > 193 > 4 > 1338-1343
American Journal of Obstetrics and Gynecology > 2005 > 193 > 4 > 1410-1414