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The Human Phenotype Ontology (HPO) is downloaded weekly from The file downloaded is considered the "last stable build" available for the ontology. For more about the HPO, view their website at

Term:Small placenta
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Accession:HP:0006266 term browser browse the term
Definition:Reduced size of the placenta.
Synonyms:xref: SNOMEDCT_US:289264006;   UMLS:C0566694

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Term paths to the root
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Term Annotations click to browse term
  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of prenatal development or birth 0
        Abnormalities of placenta or umbilical cord 0
          Abnormal placenta morphology 0
            Abnormal placental size 0
              Small placenta 0
paths to the root