The role of carcinogens, especially those in cigarette smoke, in the production of precancerous lesions.
D002273:Carcinogens; D002283:Carcinoma, Bronchogenic / Q000209:etiology*; D006801:Humans; D008175:Lung Neoplasms / Q000209:etiology*; D012906:Smoke; D012907:Smoking; D014026:Nicotiana
D002273:Carcinogens; D012906:Smoke
CARCINOMA, BRONCHOGENIC/etiology; LUNG NEOPLASMS/etiology; SMOKING