RT Journal Article SR Electronic T1 Do no harm JF Practical Neurology JO Pract Neurol FD BMJ Publishing Group Ltd SP e2 OP e2 DO 10.1136/practneurol-2014-000965 VO 15 IS 6 A1 T A T Hughes YR 2015 UL http://pn.bmj.com/content/15/6/e2.abstract AB