RT Journal Article SR Electronic T1 No Increased Risk for Contrast-Induced Nephropathy after Multiple CT Perfusion Studies of the Brain with a Nonionic, Dimeric, Iso-Osmolal Contrast Medium JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A1164 A1 S. Langner A1 S. Stumpe A1 M. Kirsch A1 M. Petrik A1 N. Hosten YR 2008 UL http://www.ajnr.org/content/early/2008/06/04/ajnr.A1164.abstract AB