In the article "Mutism: Review, Differential Diagnosis, and Report of 22 Cases" (November 1986 issue, pp. 1409-1414), by Lori L. Altshuler et al., there was a printing error. The second sentence of the first complete paragraph in the right column of p. 1409 should read ". . . neuroleptic agents (16-19) . . ." rather than "neurologic agents."The staff regrets these errors.