RT Journal Article SR Electronic T1 Carphology JF Practical Neurology JO Pract Neurol FD BMJ Publishing Group Ltd SP 89 OP 89 DO 10.1136/practneurol-2020-002889 VO 21 IS 1 A1 Ben, A Fo YR 2021 UL http://pn.bmj.com/content/21/1/89.abstract AB