title: The red tattoo and lichen planus.
mesh_terms: D000328:Adult; D004342:Drug Hypersensitivity / Q000209:etiology; D006801:Humans; D008010:Lichen Planus / Q000209:etiology* / Q000276:immunology / Q000473:pathology; D008297:Male; D008628:Mercury / Q000276:immunology; D013653:Tattooing / Q000009:adverse effects*
chemical_list: D008628:Mercury