RT Journal Article SR Electronic T1 Arteriographic Demonstration of Collateral Circulation in Cerebrovascular Disease JF Neurology JO Neurology FD Lippincott Williams & Wilkins SP 27 OP 27 DO 10.1212/WNL.8.1.27 VO 8 IS 1 A1 Lehrer, Gerard M. YR 1958 UL http://n.neurology.org/content/8/1/27.abstract AB