RT Journal Article SR Electronic T1 EXTRADURAL HAEMATOMA AT THE VERTEX JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 381 OP 384 DO 10.1136/jnnp.24.4.381 VO 24 IS 4 A1 Alexander, G. L. YR 1961 UL http://jnnp.bmj.com/content/24/4/381.abstract AB