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Is the Placenta Porous?. Nature 221, 997 (1969). https://doi.org/10.1038/221997a0
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DOI: https://doi.org/10.1038/221997a0
Nature volume 221, page 997 (1969)
Is the Placenta Porous?. Nature 221, 997 (1969). https://doi.org/10.1038/221997a0
Issue Date:
DOI: https://doi.org/10.1038/221997a0