American Journal of Obstetrics and Gynecology
American Journal of Obstetrics and Gynecology > 1995 > 172 > 2 Part 1 > 705-712
American Journal of Obstetrics and Gynecology > 1997 > 177 > 2 > 333-341
American Journal of Obstetrics and Gynecology > 1998 > 178 > 1 Part 1 > 66-73
American Journal of Obstetrics and Gynecology > 1998 > 179 > 4 > 1038-1042
American Journal of Obstetrics and Gynecology > 2004 > 191 > 2 > 537-541
American Journal of Obstetrics and Gynecology > 2004 > 191 > 3 > 954-957
American Journal of Obstetrics and Gynecology > 2004 > 191 > 3 > 928-932
American Journal of Obstetrics and Gynecology > 2005 > 192 > 3 > 882-886
American Journal of Obstetrics and Gynecology > 2005 > 192 > 5 > 1472-1474
American Journal of Obstetrics and Gynecology > 2005 > 193 > 3 Supplement > 965-972
American Journal of Obstetrics and Gynecology > 2005 > 193 > 4 > 1353-1360
American Journal of Obstetrics and Gynecology > 2005 > 193 > 4 > 1517-1521
American Journal of Obstetrics and Gynecology > 2005 > 193 > 6 > 1994-1998
American Journal of Obstetrics and Gynecology > 2006 > 195 > 3 > 818-821
American Journal of Obstetrics and Gynecology > 2006 > 195 > 4 > 1100-1103
American Journal of Obstetrics and Gynecology > 2007 > 196 > 6 > 530.e1-530.e8
American Journal of Obstetrics and Gynecology > 2007 > 197 > 4 > 376.e1-376.e7
American Journal of Obstetrics and Gynecology > 2007 > 197 > 4 > 411.e1-411.e5