RT Journal Article SR Electronic T1 Imaging quiz. Intravenous drug use; multiple broken needle tips in the neck. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 658 OP 658 VO 15 IS 4 A1 Aggarwal, S A1 Kumar, A YR 1994 UL http://www.ajnr.org/content/15/4/658.abstract AB