On variations of pitch in percussion and respiratory sounds, and their application to physical diagnosis : prize essay / by Austin Flint.

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On variations of pitch in percussion and respiratory sounds, and their application to physical diagnosis : prize essay / by Austin Flint. 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.)