On the use of an artificial membrana tympani, in cases of deafness, dependant upon perforation or destruction of the natural organ / by Joseph Toynbee.

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On the use of an artificial membrana tympani, in cases of deafness, dependant upon perforation or destruction of the natural organ / by Joseph Toynbee. Public Domain Mark. Source: Wellcome Collection.

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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.