RT Journal Article SR Electronic T1 The Evolutionary and Embryologic Basis for the Development and Anatomy of the Cavum Veli Interpositi JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1383 OP 1684 VO 20 IS 7 YR 1999 UL http://www.ajnr.org/content/20/7/1383.abstract AB