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Watercolor drawing of the gums and tongue from a case of lead poisoning

Burton's line is evident, and there has been additional lead complex deposited on the lateral margin of the tongue and the buccal mucosa. Illustration by Surgeon and Anatomist Thomas Godart (active 1852-1861). (Source: St. Bartholomew's Hospital Archives and Museum. Courtesy of the Wellcome Collection, London, England. Creative Commons Attribution 4.0 International [CC BY 4.0] License, http://creativecommons.org/licenses/by/4.0.)

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