title: Evaluation of cancer risk in tobacco chewers and smokers: an epidemiologic assessment.
mesh_terms: D002273:Carcinogens; D004938:Esophageal Neoplasms / Q000453:epidemiology* / Q000209:etiology; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007194:India; D007822:Laryngeal Neoplasms / Q000453:epidemiology* / Q000209:etiology; D008175:Lung Neoplasms / Q000209:etiology; D008297:Male; D008409:Mastication; D009062:Mouth Neoplasms / Q000453:epidemiology* / Q000209:etiology; D010610:Pharyngeal Neoplasms / Q000453:epidemiology* / Q000209:etiology; D010947:Plants, Toxic; D012042:Registries; D012189:Retrospective Studies; D012907:Smoking / Q000150:complications*; D014026:Nicotiana
chemical_list: D002273:Carcinogens