RT Journal Article SR Electronic T1 On missing meningiomas JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 462 OP 467 DO 10.1136/jnnp.26.5.462 VO 26 IS 5 A1 Ahmed El-Banhawy A1 P. W. E. Sheldon A1 Joe Pennybacker YR 1963 UL http://jnnp.bmj.com/content/26/5/462.abstract AB