title: Qualitative and quantitative differences in sulfatase A which distinguish different forms of classical metachromatic leukodystrophy (MLD).
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D003937:Diagnosis, Differential; D002549:Diffuse Cerebral Sclerosis of Schilder / Q000201:enzymology*; D006801:Humans