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Credit
On some of the causes and effects of valvular diseases of the heart : being the Croonian Lectures of the Royal College of Physicians for 1865 / by Thomas B. Peacock. Public Domain Mark. Source: Wellcome Collection.
Provider
This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.