https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13982768Edit ImageSaveSaveEditCropCustom TextA physician examining urine. Mezzotint by R. Houston after A. van Ostade.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 966 x 1200 px | 300 dpiLarge JPEG 2555 x 3174 px | 300 dpiFree DownloadA physician examining urine. Mezzotint by R. Houston after A. van Ostade.More