Oral environmental influence in the causation of leukoplakia. (A study of tobacco, quid and betel chewing).
D001114:Areca; D007971:Leukoplakia / Q000209:etiology; D008010:Lichen Planus / Q000209:etiology; D009059:Mouth Diseases / Q000209:etiology; D009062:Mouth Neoplasms / Q000209:etiology; D009914:Oral Submucous Fibrosis / Q000209:etiology; D010946:Plants, Medicinal; D010947:Plants, Toxic; D012907:Smoking / Q000150:complications; D014026:Nicotiana