RT Journal Article SR Electronic T1 Sources of error in motor nerve conduction studies JF Neurology JO Neurology FD Lippincott Williams & Wilkins SP 825 OP 825 DO 10.1212/WNL.14.9.825 VO 14 IS 9 A1 M. M. Gassel YR 1964 UL http://n.neurology.org/content/14/9/825.abstract AB