RT Journal Article SR Electronic T1 Fetal Origin of the Posterior Cerebral Artery Produces Left-Right Asymmetry on Perfusion Imaging JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A1858 A1 Wentland, A.L. A1 Rowley, H.A. A1 Vigen, K.K. A1 Field, A.S. YR 2009 UL http://www.ajnr.org/content/early/2009/10/29/ajnr.A1858.abstract AB