Photograph: portrait of P. Ehrlich in his
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Photograph: portrait of P. Ehrlich in his. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Photograph: portrait of P. Ehrlich in his. Wellcome Collection. Source: Wellcome Collection.