Ichthyol und Resorcin als Repräsentanten der Gruppe reduzierender Heilmittel /cvon Dr. P.G. Unna.

  • Paul Gerson Unna
Date:
1886

Licence: Public Domain Mark

Credit: Ichthyol und Resorcin als Repräsentanten der Gruppe reduzierender Heilmittel /cvon Dr. P.G. Unna. Source: Wellcome Collection.

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