title: Radiographic signs of early Legg-Calvé-Perthes disease.
mesh_terms: D002358:Cartilage, Articular / Q000000981:diagnostic imaging; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007873:Legg-Calve-Perthes Disease / Q000000981:diagnostic imaging*; D010007:Osteochondritis / Q000000981:diagnostic imaging*; D010388:Pelvis / Q000000981:diagnostic imaging; D011859:Radiography; D013997:Time Factors