RT Journal Article SR Electronic T1 Cardrase JF Neurology JO Neurology FD Lippincott Williams & Wilkins SP 210 OP 210 DO 10.1212/WNL.10.2.210 VO 10 IS 2 A1 Sidney Merlis YR 1960 UL http://n.neurology.org/content/10/2/210.abstract AB