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In the letter to the editor entitled "Are Effective Antiobsessional Drugs Interchangeable?" published in the September 1991 issue of the ARCHIVES (1991;48:857-858), an error appeared in the text. The final sentence of the second to last paragraph should have read "Thus, based on our observation and the crossover study data, clinicians should not convey optimistic expectations to patients who do not respond to clomipramine and for whom a change to another serotonin reuptake inhibitor is contemplated." The Archives regrets the error.
CORRECTION. Arch Gen Psychiatry. 1991;48(11):1021. doi:10.1001/archpsyc.1991.01810350061009