RT Journal Article SR Electronic T1 Diagnostic Manual of Tumours of the Central Nervous System JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 815 OP 815 DO 10.1136/jnnp.52.6.815-a VO 52 IS 6 A1 F Scaravilli YR 1989 UL http://jnnp.bmj.com/content/52/6/815.2.abstract AB