American Journal of Obstetrics and Gynecology
American Journal of Obstetrics and Gynecology > 2004 > 191 > 1 > 105-113
American Journal of Obstetrics and Gynecology > 2004 > 191 > 1 > 114-120
American Journal of Obstetrics and Gynecology > 2004 > 191 > 1 > 105-113
American Journal of Obstetrics and Gynecology > 2004 > 191 > 1 > 114-120