title: Cancer of the lung among nonsmokers. Special reference to histologic patterns.
mesh_terms: D000230:Adenocarcinoma / Q000209:etiology; D000328:Adult; D000368:Aged; D002273:Carcinogens; D003528:Carcinoma, Adenoid Cystic / Q000209:etiology; D002294:Carcinoma, Squamous Cell / Q000209:etiology; D004781:Environmental Exposure; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D009784:Occupational Diseases; D012189:Retrospective Studies; D012907:Smoking
chemical_list: D002273:Carcinogens