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In the McKinney and Bunney article "Animal Model of Depression: I. Review of Evidence: Implications for Research" which appeared in the August issue of the Archives (21:240-248, 1969), page sequence was erroneous making readability confusing. Page 244 should appear as page 242 and page 242 should appear as page 243 with the remaining pages following in consecutive succession.
In the article "Muscle Enzyme Release in the Acute Psychoses" (Arch Gen Psychiat 21:102-112 [July] 1969), the units of serum aldolase activity should be mμ mol ml-1hr-1, not μmol ml-1hr-1.
ERRATA. Arch Gen Psychiatry. 1969;21(3):346. doi:10.1001/archpsyc.1969.01740210090011