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 284 OP 284 DO 10.1136/jnnp.54.3.284 VO 54 IS 3 A1 JMS Pearce YR 1991 UL http://jnnp.bmj.com/content/54/3/284.1.abstract AB