Licence: Public Domain Mark
Credit: Petr Grigorʹevich Sergiev. Photograph by L.J. Bruce-Chwatt. Wellcome Collection. Source: Wellcome Collection.
Licence: Public Domain Mark
Credit: Petr Grigorʹevich Sergiev. Photograph by L.J. Bruce-Chwatt. Wellcome Collection. Source: Wellcome Collection.