RT Journal Article SR Electronic T1 Astrocytoma with calvarial erosion. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 178 OP 178 VO 7 IS 1 A1 Osborn, R E A1 Ley, C E YR 1986 UL http://www.ajnr.org/content/7/1/178.1.abstract AB