RT Journal Article SR Electronic T1 A mystery solved JF Practical Neurology JO Pract Neurol FD BMJ Publishing Group Ltd SP 107 OP 109 DO 10.1136/practneurol-2013-000638 VO 14 IS 2 A1 H Abbasi A1 S L Bell A1 W Stewart A1 Asha Neelakantan A1 Stewart Webb YR 2014 UL http://pn.bmj.com/content/14/2/107.abstract AB