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Updated: Aug 19, 2026

Determination of the Transport Rate of Xenobiotics and Nanomaterials Across the Placenta using the ex vivo Human Placental Perfusion Model
08:08

Determination of the Transport Rate of Xenobiotics and Nanomaterials Across the Placenta using the ex vivo Human Placental Perfusion Model

Published on: June 18, 2013

Migrating placenta previa

J S Powers, J M Hill

    Southern Medical Journal
    |November 1, 1976
    PubMed

    A case of third trimester bleeding from placenta previa is presented in which serial ultrasonograms were obtained from the 30th to the 36th gestational week and confirmed by isotopic scanning. Evidence is presented showing a migration of a placenta previa marginalis away from the cervical os followed by vaginal delivery at term. The concept and mechanism of placental migration are reviewed.

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