American Journal of Obstetrics and Gynecology
American Journal of Obstetrics and Gynecology > 1999 > 180 > 1 > 24-27
American Journal of Obstetrics and Gynecology > 1999 > 180 > 1 > 49-54
American Journal of Obstetrics and Gynecology > 1999 > 180 > 1 > 128-134
American Journal of Obstetrics and Gynecology > 1999 > 180 > 1 > 110-111
American Journal of Obstetrics and Gynecology > 1999 > 180 > 1 > 82-90
American Journal of Obstetrics and Gynecology > 1999 > 180 > 1 > 112-113
American Journal of Obstetrics and Gynecology > 1999 > 180 > 1 > 64-67
American Journal of Obstetrics and Gynecology > 1999 > 180 > 1 > 188-193
American Journal of Obstetrics and Gynecology > 1999 > 180 > 1 > 28-32
American Journal of Obstetrics and Gynecology > 1999 > 180 > 1 > 68-72
American Journal of Obstetrics and Gynecology > 1999 > 180 > 1 > 91-94
American Journal of Obstetrics and Gynecology > 1999 > 180 > 1 > 181-187
American Journal of Obstetrics and Gynecology > 1999 > 180 > 1 > 60-63
American Journal of Obstetrics and Gynecology > 1999 > 180 > 1 > 235-240
American Journal of Obstetrics and Gynecology > 1999 > 180 > 1 > 1-7