title: Chondrodysplasia spondylometaphysealis.
abstract: Four pairs of sibs with different types of spondylometaphyseal chondrodysplasias were observed. A short description of two sibs from the Royal Alexandra Hospital for Children, Sydney, is presented. All the patients will be the subject of a separate report.
mesh_terms: D002675:Child, Preschool; D006801:Humans; D008297:Male; D009999:Ossification, Heterotopic / Q000235:genetics*; D010009:Osteochondrodysplasias / Q000235:genetics*; D013122:Spinal Diseases / Q000235:genetics*