title: An epidemiological study of Legg-Perthes disease.
mesh_terms: D001722:Birth Order; D001724:Birth Weight; D001827:Body Height; D001846:Bone Development; D002648:Child; D002675:Child, Preschool; D003237:Connecticut; D004838:Epiphyses; D005260:Female; D005270:Femur Head; D006801:Humans; D007239:Infections / Q000150:complications; D008297:Male; D008423:Maternal Age; D009336:Necrosis; D010007:Osteochondritis / Q000453:epidemiology* / Q000235:genetics; D014947:Wounds and Injuries / Q000150:complications