RT Journal Article SR Electronic T1 Carphology JF Practical Neurology JO Pract Neurol FD BMJ Publishing Group Ltd SP 81 OP 81 DO 10.1136/practneurol-2016-001578 VO 17 IS 1 A1 A Fo Ben YR 2017 UL http://pn.bmj.com/content/17/1/81.abstract AB