RT Journal Article SR Electronic T1 What Is the Meaning of Quantitative CBF? JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 235 OP 236 VO 22 IS 2 A1 A. Gregory Sorensen YR 2001 UL http://www.ajnr.org/content/22/2/235.abstract AB