Pre malignant oral lesions.
D001706:Biopsy; D004919:Erythroplasia / Q000473:pathology; D006801:Humans; D007972:Leukoplakia, Oral / Q000209:etiology / Q000473:pathology*; D009062:Mouth Neoplasms / Q000473:pathology; D011230:Precancerous Conditions / Q000473:pathology*; D012306:Risk