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Credit
Remarks on longevity and the expectation of life in the United States, relating more particularly to the state of New Hampshire, with some comparative views in relation to foreign countries / by J.E. Worcester. Public Domain Mark. Source: Wellcome Collection.
Provider
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.)