RT Journal Article SR Electronic T1 1992 ASNR Presidential Address JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1652 OP 1654 VO 13 IS 6 A1 Bryan, R. Nick YR 1992 UL http://www.ajnr.org/content/13/6/1652.abstract AB