Uber die respiratorischen Anderungen des Percussionsschalles am Thorax unter normalen und pathologischen Verhältnissen / von N. Friedreich.

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Uber die respiratorischen Anderungen des Percussionsschalles am Thorax unter normalen und pathologischen Verhältnissen / von N. Friedreich. Public Domain Mark. Source: Wellcome Collection.

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This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.