RT Journal Article SR Electronic T1 Regional White Matter Atrophy–Based Classification of Multiple Sclerosis in Cross-Sectional and Longitudinal Data JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A1659 A1 M.P. Sampat A1 A.M. Berger A1 B.C. Healy A1 P. Hildenbrand A1 J. Vass A1 D.S. Meier A1 T. Chitnis A1 H.L. Weiner A1 R. Bakshi A1 C.R.G. Guttmann YR 2009 UL http://www.ajnr.org/content/early/2009/08/20/ajnr.A1659.abstract AB