RT Journal Article SR Electronic T1 Normal-appearing White and Grey Matter Damage in Multiple Sclerosis JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 945 OP 946 VO 27 IS 4 YR 2006 UL http://www.ajnr.org/content/27/4/945.abstract AB