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Corrections

Published Online:https://doi.org/10.1176/ajp.148.10.1427

The correct figure 1 for the article "Clozapine and Norclozapine Plasma Concentrations and Clinical Response of Treatment-Refractory Schizophrenic Patients" by Paul J. Perry, Ph.D., et al. (February 1991 issue, pp. 231-235) is given below.

[See figure in the PDF file]

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