RT Journal Article SR Electronic T1 Neuroimaging Clinics of North America: Cranial Nerves, Vol. 18, No. 2 JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP e27 OP e27 DO 10.3174/ajnr.A1386 VO 30 IS 2 YR 2009 UL http://www.ajnr.org/content/30/2/e27.abstract AB