RT Journal Article SR Electronic T1 Advances and Technical Standards in Neurosurgery, Vol. 32 JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A1087 YR 2008 UL http://www.ajnr.org/content/early/2008/04/10/ajnr.A1087.abstract AB