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 Johnson, J E A1 Yang, P J A1 Koopmann, C F A1 Heffner, D K YR 1987 UL http://www.ajnr.org/content/8/6/1152.abstract AB