A comparison of genotypes , ARSA activities , and clinical data on 4 individuals carrying the allele of 81 patients with MLD examined , further validates the concept that different degrees of residual ARSA activity are the basis of phenotypical variation in MLD ..
O O O O O B-GeneOrGeneProduct O O O O O O O O O O O O O B-OrganismTaxon O B-DiseaseOrPhenotypicFeature O O O O O O O O O O O B-GeneOrGeneProduct O O O O O O O O B-DiseaseOrPhenotypicFeature O