title: Epiphyseal extrusion as a prognostic index in Legg-Calvé-Perthes disease.
mesh_terms: D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D004838:Epiphyses / Q000503:physiopathology*; D005271:Femur Head Necrosis / Q000503:physiopathology*; D006801:Humans; D007873:Legg-Calve-Perthes Disease / Q000145:classification / Q000503:physiopathology* / Q000628:therapy; D011379:Prognosis