title: Letter: A note on medical history.
mesh_terms: D003300:Copper; D004741:Engraving and Engravings; D005602:France; D005858:Germany; D049671:History, 18th Century; D049672:History, 19th Century; D008488:Medical Illustration / Q000266:history*; D010781:Photography / Q000266:history; D012871:Skin Diseases / Q000266:history*; D014481:United States
chemical_list: D003300:Copper