Public Domain Mark
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Credit
A text-book of the diseases of the ear for students and practitioners / by Adam Politzer ; tr. at the personal request of the author and ed. by Milton J. Ballin and Clarence L. Heller. 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.