RT Journal Article SR Electronic T1 Geographic Variation in Neuroimaging JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1633 OP 1634 VO 22 IS 9 A1 David Seidenwurm YR 2001 UL http://www.ajnr.org/content/22/9/1633.abstract AB