American Journal of Obstetrics and Gynecology
American Journal of Obstetrics and Gynecology > 2000 > 183 > 1 > 108-117
American Journal of Obstetrics and Gynecology > 2000 > 183 > 2 Supplement > S3-S9
American Journal of Obstetrics and Gynecology > 2000 > 183 > 1 > 108-117
American Journal of Obstetrics and Gynecology > 2000 > 183 > 2 Supplement > S3-S9