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Credit
Der Einfluss des Rauches auf die Atmungsorgane : eine sozialhygienische Untersuchung für Mediziner, Nationalökonomen, Gewerbe- und Verwaltungsbeamte, sowie für Feuerungstechniker / von Louis Ascher. In copyright. Source: Wellcome Collection.
Provider
This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.