RT Journal Article SR Electronic T1 CORRECTIONS JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 1165 OP 1165 DO 10.1136/jnnp.74.8.1165 VO 74 IS 8 YR 2003 UL http://jnnp.bmj.com/content/74/8/1165.abstract AB