RT Journal Article SR Electronic T1 Delayed Appearance of Anterior Cerebral Arteries on Isotopic Cerebral Flow Study: A Sign of Bleeding Anterior Communicating Artery Aneurysm JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 1217 OP 1219 VO 15 IS 12 A1 Stein, Mark Allen A1 Winter, James YR 1974 UL http://jnm.snmjournals.org/content/15/12/1217.abstract AB