RT Journal Article SR Electronic T1 Dural Ectasia in Marfan Syndrome: A Case Control Study JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A1620 A1 R. Lundby A1 S. Rand-Hendriksen A1 J.K. Hald A1 F.G. LilleƄs A1 A.H. Pripp A1 S. Skaar A1 B. Paus A1 O. Geiran A1 H.-J. Smith YR 2009 UL http://www.ajnr.org/content/early/2009/05/20/ajnr.A1620.abstract AB