RT Journal Article SR Electronic T1 SClENTlFlC EXHIBITS JF Neurology JO Neurology FD Lippincott Williams & Wilkins SP 418 OP 418 DO 10.1212/WNL.20.4.418 VO 20 IS 4 YR 1970 UL http://n.neurology.org/content/20/4/418.abstract AB