RT Journal Article SR Electronic T1 Intracranial and Extracranial Atherosclerosis: More Similar Than Different? JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A6349 A1 L.L. Chan YR 2019 UL http://www.ajnr.org/content/early/2019/11/28/ajnr.A6349.abstract AB