RT Journal Article SR Electronic T1 Parapharyngeal angiofibroma. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1152 OP 1153 VO 8 IS 6 A1 J E Johnson A1 P J Yang A1 C F Koopmann, Jr A1 D K Heffner YR 1987 UL http://www.ajnr.org/content/8/6/1152.abstract AB