RT Journal Article SR Electronic T1 BOOK REVIEWS JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 942 OP 942 DO 10.1136/jnnp.56.8.942 VO 56 IS 8 A1 Clarke, CE YR 1993 UL http://jnnp.bmj.com/content/56/8/942.abstract AB