RT Journal Article SR Electronic T1 “Puppy sign” indicating bilateral dissection of internal carotid artery JF Journal of Neurology, Neurosurgery & Psychiatry JO J Neurol Neurosurg Psychiatry FD BMJ Publishing Group Ltd SP 1055 OP 1055 DO 10.1136/jnnp.2007.115857 VO 78 IS 10 A1 Feddersen, Berend A1 Linn, Jennifer A1 Klopstock, Thomas YR 2007 UL http://jnnp.bmj.com/content/78/10/1055.abstract AB