RT Journal Article SR Electronic T1 Bilateral internal carotid occlusion: a clinical and radiological study JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1186 OP 1196 VO 99 IS 24 A1 Wortzman, G. A1 Barnett, H. J. A1 Lougheed, W. M. YR 1968 UL http://www.cmaj.ca/content/99/24/1186.abstract