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1
J.AJOG.2009.08.003
J.AJOG.2009.08.003
http://dx.doi.org/10.1016/J.AJOG.2009.08.003
Second-stage labor duration in nulliparous women: relationship to maternal and perinatal outcomes
P356
Q24648089-1F795DEA-22E0-4170-A9C1-84ED1F7BCEC8
P356
J.AJOG.2009.08.003
http://dx.doi.org/10.1016/J.AJOG.2009.08.003