Search results for: Robert H. Ball
American Journal of Obstetrics and Gynecology > 2007 > 197 > 4 > 396.e1-396.e9
American Journal of Obstetrics and Gynecology > 2007 > 197 > 1 > 30.e1-30.e7
American Journal of Obstetrics and Gynecology > 2006 > 195 > 3 > 843-847
American Journal of Obstetrics and Gynecology > 2006 > 194 > 3 > 834-839
American Journal of Obstetrics and Gynecology > 2004 > 190 > 3 > 745-750