https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14005177Edit ImageSaveSaveEditCropCustom TextThe Trustees of the Wellcome Trust. Photograph.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseEditorial use only JPEGSmall JPEG 1200 x 923 px | 300 dpiLarge JPEG 3219 x 2477 px | 300 dpiFree DownloadThe Trustees of the Wellcome Trust. Photograph.More