Oral submucous fibrosis as a precancerous lesion.
D000293:Adolescent; D000328:Adult; D001114:Areca; D005247:Feeding Behavior; D005260:Female; D006801:Humans; D007194:India / Q000208:ethnology; D009059:Mouth Diseases / Q000473:pathology*; D009062:Mouth Neoplasms / Q000473:pathology*; D009914:Oral Submucous Fibrosis / Q000473:pathology*; D010946:Plants, Medicinal; D011230:Precancerous Conditions / Q000473:pathology*; D013019:South Africa