https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13985632Edit ImageSaveSaveEditCropCustom TextThe sphygmograph : its history and use as an aid to diagnosis in ordinary practice / R.E. Dudgeon.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1140 x 1200 px | 300 dpiLarge JPEG 1320 x 1390 px | 300 dpiFree DownloadThe sphygmograph : its history and use as an aid to diagnosis in ordinary practice / R.E. Dudgeon.More