American Journal of Obstetrics and Gynecology
American Journal of Obstetrics and Gynecology > 1999 > 180 > 2 > 387-392
American Journal of Obstetrics and Gynecology > 1999 > 180 > 2 > 402-405
American Journal of Obstetrics and Gynecology > 1999 > 180 > 2 > 334-339
American Journal of Obstetrics and Gynecology > 1999 > 180 > 2 > 340-341
American Journal of Obstetrics and Gynecology > 1999 > 180 > 2 > 491-495
American Journal of Obstetrics and Gynecology > 1999 > 180 > 2 > 299-305
American Journal of Obstetrics and Gynecology > 1999 > 180 > 2 > 469-475
American Journal of Obstetrics and Gynecology > 1999 > 180 > 2 > 381-386
American Journal of Obstetrics and Gynecology > 1999 > 180 > 2 > 378-380
American Journal of Obstetrics and Gynecology > 1999 > 180 > 2 > 349-352
American Journal of Obstetrics and Gynecology > 1999 > 180 > 2 > 353-359
American Journal of Obstetrics and Gynecology > 1999 > 180 > 2 > 496-498
American Journal of Obstetrics and Gynecology > 1999 > 180 > 2 > 290-298
American Journal of Obstetrics and Gynecology > 1999 > 180 > 2 > 457-461
American Journal of Obstetrics and Gynecology > 1999 > 180 > 2 > 483-490
American Journal of Obstetrics and Gynecology > 1999 > 180 > 2 > 499-506
American Journal of Obstetrics and Gynecology > 1999 > 180 > 2 > 270-275