| The impact of occiput posterior fetal head position on the risk of analsphincter injury in forceps-assisted vaginal deliveries |
Benavides, L.;Wu, J.M.;Hundley, A.F.;Ivester, T.S.;Visco, A.G.; |
American Journal of Obstetrics and Gynecology |
2005-05-01 |
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