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 SP E34 OP E35 DO 10.3174/ajnr.A3499 VO 34 IS 3 A1 A. Sen YR 2013 UL http://www.ajnr.org/content/34/3/E34.abstract AB