title: Radioactivity and lung cancer in active and passive smokers.
mesh_terms: D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000209:etiology*; D008297:Male; D009381:Neoplasms, Radiation-Induced / Q000209:etiology*; D011851:Radioactivity; D011868:Radioisotopes / Q000009:adverse effects*; D012907:Smoking; D014028:Tobacco Smoke Pollution / Q000009:adverse effects*
chemical_list: D011868:Radioisotopes; D014028:Tobacco Smoke Pollution