https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14017306Edit ImageSaveSaveEditCropCustom TextA physician examining a urine flask. Oil painting by Gerard Thomas.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 997 px | 300 dpiLarge JPEG 3444 x 2862 px | 300 dpiFree DownloadA physician examining a urine flask. Oil painting by Gerard Thomas.More