title: Letter: Gene dosage effect in trisomy 21.
mesh_terms: D002648:Child; D002675:Child, Preschool; D002875:Chromosomes / Q000201:enzymology; D002904:Chromosomes, Human, 21-22 and Y; D004912:Erythrocytes / Q000201:enzymology; D005796:Genes; D005954:Glucosephosphate Dehydrogenase / Q000097:blood; D006801:Humans; D007223:Infant; D007962:Leukocytes / Q000201:enzymology; D012730:Sex Chromosomes / Q000201:enzymology; D013482:Superoxide Dismutase / Q000097:blood; D014314:Trisomy
chemical_list: D005954:Glucosephosphate Dehydrogenase; D013482:Superoxide Dismutase