RT Journal Article SR Electronic T1 Are Libraries an Endangered Species? JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A2028 A1 Castillo, M. YR 2010 UL http://www.ajnr.org/content/early/2010/02/25/ajnr.A2028.abstract AB