RT Journal Article SR Electronic T1 Optic Canal Narrowing in Hunter Syndrome (Mucopolysaccharidosis II) JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A3499 A1 A. Sen YR 2013 UL http://www.ajnr.org/content/early/2013/01/31/ajnr.A3499.abstract AB