3Alderson D,Strong AJ, Ingham HR, et al. Fifteen-year review of the mortality of brain abscess, Neurosurgery, 1981,8:1.
4Leys D,Christiaens JL, Deramhure PH,et al, Management of focal intracranial infections,is medical treatment better than surgery? Journal of Neurology I Neurosurgery and Psychiatry,1990,53:475.