The death rate of St. Louis : an inquiry into the cause of its being less than that of any other large city of the United States / by Charles A. Todd.

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The death rate of St. Louis : an inquiry into the cause of its being less than that of any other large city of the United States / by Charles A. Todd. Public Domain Mark. Source: Wellcome Collection.

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This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)