RT Journal Article SR Electronic T1 Procedures for setting normal values JF Neurology JO Neurology FD Lippincott Williams & Wilkins SP 17 OP 23 DO 10.1212/WNL.45.1.17 VO 45 IS 1 A1 O'Brien, Peter C. A1 Dyck, Peter J. YR 1995 UL http://n.neurology.org/content/45/1/17.abstract AB