title: Family studies of relation between Perthes disease and congenital dislocation of the hip.
mesh_terms: D003718:Denmark; D005260:Female; D005787:Gene Frequency; D005796:Genes; D006618:Hip Dislocation, Congenital / Q000235:genetics*; D006621:Hip Joint; D006801:Humans; D008297:Male; D010007:Osteochondritis / Q000235:genetics*