RT Journal Article SR Electronic T1 Circulatory variations of the ophthalmic artery. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 327 OP 329 VO 3 IS 3 A1 R I Grossman A1 K R Davis A1 J M Taveras YR 1982 UL http://www.ajnr.org/content/3/3/327.abstract AB