https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13981719Edit ImageSaveSaveEditCropCustom TextA physician examining a urine sample in a flask, cane pressed against his chin. Wood engraving after A.A. Oberländer.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 891 x 1200 px | 300 dpiLarge JPEG 2340 x 3150 px | 300 dpiFree DownloadA physician examining a urine sample in a flask, cane pressed against his chin. Wood engraving after A.A. Oberländer.More