https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14011890Edit ImageSaveSaveEditCropCustom TextA physician examining urine. Engraving by A. Walker, 1763, after A. van Ostade.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 2392 x 3221 px | 300 dpiFree DownloadA physician examining urine. Engraving by A. Walker, 1763, after A. van Ostade.More