RT Journal Article SR Electronic T1 Proceedings of the Association of British Neurologists Autumn Meeting, 1–3 October 2003 JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 516 OP 522 VO 75 IS 3 YR 2004 UL http://jnnp.bmj.com/content/75/3/516.abstract AB