RT Journal Article SR Electronic T1 MATTERS ARISING JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 662 OP 662 DO 10.1136/jnnp.59.6.662 VO 59 IS 6 A1 Cavanagh, JP YR 1995 UL http://jnnp.bmj.com/content/59/6/662.1.abstract AB