RT Journal Article SR Electronic T1 Bell’s that did not ring true JF Practical Neurology JO Pract Neurol FD BMJ Publishing Group Ltd SP 154 OP 158 DO 10.1136/practneurol-2016-001512 VO 17 IS 2 A1 Gemma Maxwell A1 Paul Reading YR 2017 UL http://pn.bmj.com/content/17/2/154.abstract AB