Meng Law, Amit M. Saindane, James Babb, Glyn Johnson, Lois J. Mannon, Joseph
Herbert, and Robert I. Grossman.
Microvascular Abnormality in Relapsing-Remitting Multiple
Sclerosis: Perfusion MR Imaging Findings in Normal-appearing White Matter.
Radiology, 231:645-652, 2004.