RT Journal Article SR Electronic T1 Benign multiple sclerosis JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 138 OP 138 DO 10.1136/jnnp.67.2.138 VO 67 IS 2 A1 A J THOMPSON YR 1999 UL http://jnnp.bmj.com/content/67/2/138.abstract AB