RT Journal Article SR Electronic JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 675 OP 675 DO 10.1136/jnnp.68.5.675 VO 68 IS 5 A1 ALBERT MUDRY YR 2000 UL http://jnnp.bmj.com/content/68/5/675.abstract AB