title: Effects of smokeless tobacco on the oral cavity.
mesh_terms: D002291:Carcinoma, Papillary / Q000209:etiology; D002294:Carcinoma, Squamous Cell / Q000209:etiology; D006801:Humans; D007972:Leukoplakia, Oral / Q000209:etiology; D009062:Mouth Neoplasms / Q000209:etiology*; D009602:Nitrosamines / Q000009:adverse effects; D014030:Tobacco, Smokeless
chemical_list: D009602:Nitrosamines; C008655:N'-nitrosonornicotine