American Journal of Obstetrics and Gynecology
American Journal of Obstetrics and Gynecology > 2004 > 191 > 1 > 159-164
American Journal of Obstetrics and Gynecology > 2005 > 192 > 5 > 1566-1572
American Journal of Obstetrics and Gynecology > 2005 > 192 > 5 > 1592-1598
American Journal of Obstetrics and Gynecology > 2007 > 197 > 1 > 70.e1-70.e8
American Journal of Obstetrics and Gynecology > 2008 > 198 > 5 > 555.e1-555.e5
American Journal of Obstetrics and Gynecology > 2010 > 202 > 2 > 124-134
American Journal of Obstetrics and Gynecology > 2011 > 205 > 3 > 230.e1-230.e5
American Journal of Obstetrics and Gynecology > 2012 > 207 > 4 > 303.e1-303.e7
American Journal of Obstetrics and Gynecology > 2013 > 208 > 1 > 79.e1-79.e7