In the article "Controlled Investigation of the Amobarbital Interview for Catatonic Mutism" by W.V. McCall, M.D., et al. (February 1992 issue, pp. 202-206), under the Subjects section on p. 203, the first sentence of the third paragraph should read "Each patient at the state hospital was examined by a neurologist at the time of the interview and was found free of localizing signs." On the same page, under the Procedure section, the fourth sentence of the first paragraph should read "A second psychiatrist (W.V.M.) conducted the interview, and a third physician administered the intravenous infusion."