Placental Blood Flow and the Risk of Preterm Delivery
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PII: S0143-4004(09)00128-3
doi:10.1016/j.placenta.2009.04.007
© 2009 Elsevier Ltd. All rights reserved.
PII: S0143-4004(09)00128-3
doi:10.1016/j.placenta.2009.04.007
© 2009 Elsevier Ltd. All rights reserved.