RT Journal Article SR Electronic T1 Pozzilli et al reply JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 1020 OP 1020 DO 10.1136/jnnp.52.8.1020 VO 52 IS 8 YR 1989 UL http://jnnp.bmj.com/content/52/8/1020.1.abstract AB