RT Journal Article SR Electronic T1 Review: magnetic resonance imaging alone is of limited usefulness in diagnosing multiple sclerosis JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 155 OP 155 DO 10.1136/ebm.11.5.155 VO 11 IS 5 YR 2006 UL http://ebm.bmj.com/content/11/5/155.abstract AB