RT Journal Article SR Electronic T1 The Penumbra System: A Mechanical Device for the Treatment of Acute Stroke due to Thromboembolism JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A1110 A1 Bose, A. A1 Henkes, H. A1 Alfke, K. A1 Reith, W. A1 Mayer, T.E. A1 Berlis, A. A1 Branca, V. A1 Sit, S.P. A1 for the Penumbra Phase 1 Stroke Trial Investigators YR 2008 UL http://www.ajnr.org/content/early/2008/05/22/ajnr.A1110.abstract AB