Stamp showing C.L.A. Laveran, issued by Algeria in 1954. From the collection of S.H. Watkins.

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    Licence: Attribution 4.0 International (CC BY 4.0)

    Credit: Stamp showing C.L.A. Laveran, issued by Algeria in 1954. From the collection of S.H. Watkins. Wellcome Collection. Source: Wellcome Collection.

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