RT Journal Article SR Electronic T1 Extradural hematomas: surgical and nonsurgical treatment. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 506 OP 507 VO 14 IS 2 A1 Servadei, F A1 Vergoni, G YR 1993 UL http://www.ajnr.org/content/14/2/506.abstract AB