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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:Torsion dystonia
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Accession:HP:0001304 term browser browse the term
Definition:Sustained involuntary muscle contractions that produce twisting and repetitive movements of the body.
Synonyms:exact_synonym: Dystonia musculorum deformans
 xref: MESH:D004422;   SNOMEDCT_US:22451001;   SNOMEDCT_US:431034009;   UMLS:C0013423

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  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of the nervous system 0
        Abnormal nervous system physiology 0
          Abnormality of movement 0
            Dystonia 0
              Torsion dystonia 0
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