title: Letter: Galactokinase deficiency in twins.
mesh_terms: D000328:Adult; D002386:Cataract / Q000209:etiology; D002675:Child, Preschool; D004200:Diseases in Twins; D005260:Female; D004376:Galactitol / Q000652:urine; D005690:Galactose / Q000652:urine; D006801:Humans; D010770:Phosphotransferases / Q000172:deficiency*
chemical_list: D004376:Galactitol; D010770:Phosphotransferases; D005690:Galactose