RT Journal Article SR Electronic T1 An “isodense” (on CT) meningioma JF Practical Neurology JO Pract Neurol FD BMJ Publishing Group Ltd SP 253 OP 254 DO 10.1136/jnnp.2006.097725 VO 6 IS 4 A1 J G Heckmann A1 A Dörfler A1 A Farrall YR 2006 UL http://pn.bmj.com/content/6/4/253.abstract AB