RT Journal Article SR Electronic T1 Neurology JF The Journal of Neurology and Psychopathology JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 169 OP 175 DO 10.1136/jnnp.s1-2.6.169 VO s1-2 IS 6 YR 1921 UL http://jnnp.bmj.com/content/s1-2/6/169.abstract AB