RT Journal Article SR Electronic T1 Surfer's ear: exostoses of the external auditory canal. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1217 OP 1218 VO 11 IS 6 A1 D B Turetsky A1 F S Vines A1 D A Clayman YR 1990 UL http://www.ajnr.org/content/11/6/1217.abstract AB