High frequency currents : their production, physical properties, physiological effects, and therapeutical uses / by H. Evelyn Crook.

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High frequency currents : their production, physical properties, physiological effects, and therapeutical uses / by H. Evelyn Crook. 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.