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Credit
Glossology, or the additional means of diagnosis of disease to be derived from indications and appearances of the tongue : read before the Senior Physical Society of Guy's Hospital, 4th November, 1843 / by Benjamin Ridge. 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.