RT Journal Article SR Electronic T1 Vanishing empty delta sign in cerebral venous thrombosis. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1239 OP 1240 VO 9 IS 6 A1 Matsumura, A A1 Shinohara, A A1 Komatsu, Y A1 Hashikawa, M A1 Nose, T YR 1988 UL http://www.ajnr.org/content/9/6/1239.abstract AB