RT Journal Article SR Electronic T1 Editor's Comment: On Redundant and Duplicate Articles JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A0777 A1 Mauricio Castillo YR 2007 UL http://www.ajnr.org/content/early/2007/09/26/ajnr.A0777.abstract AB