https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14011175Edit ImageSaveSaveEditCropCustom TextAlf Alving. Photograph by L.J. Bruce-Chwatt.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseEditorial use only JPEGSmall JPEG 855 x 1200 px | 300 dpiLarge JPEG 2338 x 3283 px | 300 dpiFree DownloadAlf Alving. Photograph by L.J. Bruce-Chwatt.More