RT Journal Article SR Electronic T1 Prethrombolysis brain imaging: trends and controversies. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1830 OP 1834 VO 18 IS 10 A1 M Castillo YR 1997 UL http://www.ajnr.org/content/18/10/1830.abstract AB