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Credit
Klinische Studien über die Behandlung der Diphtherie mit dem behringschen Heilserum : nach einem an den 13th Kongress für Innere Medizin erstattenten Bericht, nebst Belegen / von Otto Heubner. 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.