RT Journal Article SR Electronic T1 Small spiral, big mass JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 1189 OP 1190 DO 10.1136/jnnp-2018-319019 VO 89 IS 11 A1 Vijiaratnam, Nirosen A1 Lees, Andrew John A1 Morris, Huw R YR 2018 UL http://jnnp.bmj.com/content/89/11/1189.abstract AB