RT Journal Article SR Electronic T1 Vertebral artery loop causing cervical compression. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1800 OP 1801 VO 17 IS 9 A1 Yousry, T A A1 Seelos, K A1 Widenka, D C A1 Steiger, H J YR 1996 UL http://www.ajnr.org/content/17/9/1800.abstract