RT Journal Article SR Electronic T1 Editor’s choice JF Practical Neurology JO Pract Neurol FD BMJ Publishing Group Ltd SP 207 OP 207 DO 10.1136/jnnp.2008.900808 VO 8 IS 4 A1 Warlow, Charles YR 2008 UL http://pn.bmj.com/content/8/4/207.abstract AB