RT Journal Article SR Electronic T1 Correlation between MR and Clinical Findings of Disease Activity in Multiple Sclerosis JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1777 OP 1778 VO 20 IS 10 A1 McFarland, Henry F. YR 1999 UL http://www.ajnr.org/content/20/10/1777.abstract AB