TY - JOUR T1 - Ischemia and Multiple Sclerosis: Perfusion MR Imaging Provides Insight into an Underexplored Pathophysiology JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 1306 LP - 1308 VL - 26 IS - 6 AU - Jack Simon Y1 - 2005/06/01 UR - http://www.ajnr.org/content/26/6/1306.abstract N2 - ER -