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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:Reduced upper to lower segment ratio
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Accession:HP:0012773 term browser browse the term
Definition:Decreased ratio between the upper and the lower segment of the body, where the lower segment is defined as the length between the top of pubic symphysis to floor, and the upper segment is defined as the top of head to top of pubic symphysis. Consider the term Disproportionate tall stature (HP:0001519) if tall stature is also present.
Comment:A ratio of less than 0.86 (or according to other sources 0.89) is considered abnormally reduced.
Synonyms:xref: UMLS:C1836996

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  Human phenotype 0
    Phenotypic abnormality 0
      Growth abnormality 0
        Abnormality of body height 0
          Abnormal upper to lower segment ratio 0
            Reduced upper to lower segment ratio 0
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