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Credit
A practical treatise on laryngeal phthisis, chronic laryngitis, and diseases of the voice / by A. Trousseau and H. Belloc. Pathology and surgery, or, An exposition of the nature and treatment of local disease / by John Davies. 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.)