RT Journal Article SR Electronic T1 What Causes Deep Gray Matter Atrophy in Multiple Sclerosis? JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 107 OP 108 DO 10.3174/ajnr.A5942 VO 40 IS 1 A1 Schoonheim, M.M. A1 Geurts, J.J.G. YR 2019 UL http://www.ajnr.org/content/40/1/107.abstract AB