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Due to a printer's error, part of the text was deleted in the review, "Clinical and Biochemical Heterogeneity of Depressive Disorders," by J. W. Maas, M.D. (Ann Intern Med 88:556-563, 1978). The sentence at the top of the first column on page 559 should read "The number of subjects in this study was modest, and therefore the investigation was repeated."
Correction: Depressive Disorders. Ann Intern Med. 1978;89:150. doi: 10.7326/0003-4819-89-1-150_2
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Published: Ann Intern Med. 1978;89(1):150.
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