RT Journal Article SR Electronic T1 Distal Protection: Maybe Less Than You Think JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A0879 A1 Harry J. Cloft YR 2007 UL http://www.ajnr.org/content/early/2007/12/13/ajnr.A0879.abstract AB