RT Journal Article SR Electronic T1 Usefulness of brain blood-flow imaging. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1022 OP 1023 VO 14 IS 4 A1 S H Cornell YR 1993 UL http://www.ajnr.org/content/14/4/1022.abstract AB