. Author manuscript; available in PMC: 2014 Jul 1.
Published in final edited form as: J Stroke Cerebrovasc Dis. 2011 Dec 3;22(5):620–626. doi: 10.1016/j.jstrokecerebrovasdis.2011.10.012
© 2011 National Stroke Association. Published by Elsevier Inc. All rights reserved.