American Journal of Obstetrics and Gynecology
American Journal of Obstetrics and Gynecology > 1995 > 172 > 2 Part 1 > 541-547
American Journal of Obstetrics and Gynecology > 1995 > 173 > 2 > 659-666
American Journal of Obstetrics and Gynecology > 1995 > 173 > 2 > 632-638
American Journal of Obstetrics and Gynecology > 1995 > 173 > 2 > 654-659
American Journal of Obstetrics and Gynecology > 1995 > 173 > 2 > 646-653
American Journal of Obstetrics and Gynecology > 1996 > 174 > 1 Part 1 > 169-173
American Journal of Obstetrics and Gynecology > 1997 > 177 > 1 > 95-101
American Journal of Obstetrics and Gynecology > 2000 > 183 > 2 > 414-420
American Journal of Obstetrics and Gynecology > 2001 > 184 > 2 > 191-195
American Journal of Obstetrics and Gynecology > 2001 > 184 > 2 > 8-13
American Journal of Obstetrics and Gynecology > 2002 > 187 > 1 > 80-87
American Journal of Obstetrics and Gynecology > 2003 > 189 > 2 > 462-466
American Journal of Obstetrics and Gynecology > 2004 > 191 > 3 > 917-927
American Journal of Obstetrics and Gynecology > 2005 > 192 > 2 > 522-526
American Journal of Obstetrics and Gynecology > 2005 > 192 > 3 > 932-936
American Journal of Obstetrics and Gynecology > 2005 > 193 > 6 > 2071-2076
American Journal of Obstetrics and Gynecology > 2006 > 194 > 4 > 961-966
American Journal of Obstetrics and Gynecology > 2006 > 195 > 2 > 591-598