RT Journal Article SR Electronic T1 Accuracy of the Alberta Stroke Program Early CT Score during the First 3 Hours of Middle Cerebral Artery Stroke: Comparison of Noncontrast CT, CT Angiography Source Images, and CT Perfusion JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A0975 A1 K. Lin A1 O. Rapalino A1 M. Law A1 J.S. Babb A1 K.A. Siller A1 B.K. Pramanik YR 2008 UL http://www.ajnr.org/content/early/2008/02/13/ajnr.A0975.abstract AB