Search results for: R. Walker
American Journal of Obstetrics and Gynecology > 2009 > 201 > 5 > e5-e6
American Journal of Obstetrics and Gynecology > 2004 > 191 > 1 > 346-351
American Journal of Obstetrics and Gynecology > 2002 > 186 > 1 > 8-14
American Journal of Obstetrics and Gynecology > 1995 > 173 > 6 > 1676-1683