RT Journal Article SR Electronic T1 Dirty-Appearing White Matter: A Disregarded Entity in Multiple Sclerosis JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 390 OP 391 DO 10.3174/ajnr.A1834 VO 31 IS 3 A1 Filippi, M. A1 Rocca, M.A. YR 2010 UL http://www.ajnr.org/content/31/3/390.abstract AB