RT Journal Article SR Electronic T1 The ‘ding’ JF Neurology JO Neurology FD Lippincott Williams & Wilkins SP 196 OP 196 DO 10.1212/WNL.23.2.196 VO 23 IS 2 A1 Yarnell, Philip R. A1 Lynch, Steve YR 1973 UL http://n.neurology.org/content/23/2/196.abstract AB