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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:Delayed skeletal maturation
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Accession:HP:0002750 term browser browse the term
Definition:A decreased rate of skeletal maturation. Delayed skeletal maturation can be diagnosed on the basis of an estimation of the bone age from radiographs of specific bones in the human body.
Synonyms:exact_synonym: Delayed bone age;   Delayed bone age before puberty;   Delayed bone maturation;   Delayed skeletal development;   Retarded bone age;   Skeletal maturation retardation
 related_synonym: Retarded ossification
 alt_id: HP:0000928;   HP:0002806
 xref: SNOMEDCT_US:123983008;   UMLS:C0541764

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  Human phenotype 0
    Phenotypic abnormality 0
      Abnormality of the musculoskeletal system 0
        Abnormality of the skeletal system 0
          Abnormal musculoskeletal physiology 0
            Abnormality of skeletal maturation 0
              Delayed skeletal maturation 0
                Dysharmonic delayed bone age 0
                Marked delay in bone age 0
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