RT Journal Article SR Electronic T1 Reply JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1979 OP 1980 VO 21 IS 10 A1 Fleckenstein, James L. YR 2000 UL http://www.ajnr.org/content/21/10/1979.abstract AB