RT Journal Article SR Electronic T1 Predictors of Hemorrhage Following Intra-Arterial Thrombolysis for Acute Ischemic Stroke: The Role of Pial Collateral Formation JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A1276 A1 G.A. Christoforidis A1 C. Karakasis A1 Y. Mohammad A1 L.P. Caragine A1 M. Yang A1 A.P. Slivka YR 2008 UL http://www.ajnr.org/content/early/2008/09/03/ajnr.A1276.abstract AB