RT Journal Article SR Electronic T1 Summary and discussion JF Neurology JO Neurology FD Lippincott Williams & Wilkins SP 38 OP 44 DO 10.1212/WNL.13.3_Part_2.38 VO 13 IS 3 Part 2 A1 H. Houston Merritt YR 1963 UL http://n.neurology.org/content/13/3_Part_2/38.abstract AB