title: Leukoedema in addicts to coca leaves in Humahuaca, Argentina.
mesh_terms: D000328:Adult; D000368:Aged; D001118:Argentina; D002099:Cacao / Q000009:adverse effects*; D005006:Ethnicity; D005260:Female; D006801:Humans; D007967:Leukoedema, Oral / Q000139:chemically induced / Q000453:epidemiology*; D007972:Leukoplakia, Oral / Q000139:chemically induced / Q000453:epidemiology*; D008297:Male; D008409:Mastication; D008875:Middle Aged; D009059:Mouth Diseases / Q000453:epidemiology*; D009061:Mouth Mucosa / Q000187:drug effects