https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13974976Edit ImageSaveSaveEditCropCustom TextJohn Mellanby. Photograph.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 799 x 1200 px | 300 dpiLarge JPEG 2160 x 3246 px | 300 dpiFree DownloadJohn Mellanby. Photograph.More