title: Letter: Batten disease.
mesh_terms: D002648:Child; D002675:Child, Preschool; D006651:Histocytochemistry; D006801:Humans; D007223:Infant; D008064:Lipidoses / Q000097:blood / Q000201:enzymology*; D009504:Neutrophils / Q000201:enzymology*; D010544:Peroxidases / Q000097:blood*
chemical_list: D010544:Peroxidases