Oral leukoplakia.
D000328:Adult; D000368:Aged; D002613:Cheilitis / Q000628:therapy; D002648:Child; D006801:Humans; D007165:Immunosuppression Therapy; D007509:Irritants / Q000009:adverse effects; D007971:Leukoplakia / Q000209:etiology* / Q000628:therapy; D009062:Mouth Neoplasms / Q000209:etiology* / Q000628:therapy; D011230:Precancerous Conditions / Q000628:therapy; D014801:Vitamin A / Q000009:adverse effects
D007509:Irritants; D014801:Vitamin A