RT Journal Article SR Electronic T1 Demonstration of the area postrema with contrast-enhanced MR. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 733 OP 734 VO 11 IS 4 A1 K D Williams A1 B Dean A1 B P Drayer YR 1990 UL http://www.ajnr.org/content/11/4/733.abstract AB