title: Three siblings with ataxia telangiectasia.
mesh_terms: D001260:Ataxia Telangiectasia / Q000235:genetics* / Q000276:immunology; D002675:Child, Preschool; D005260:Female; D005684:Gait; D006801:Humans; D007136:Immunoglobulins / Q000032:analysis; D007223:Infant; D008297:Male
chemical_list: D007136:Immunoglobulins