[City air, smoking and increase of lung cancer].
D000397:Air Pollution; D006801:Humans; D008175:Lung Neoplasms; D012907:Smoking / Q000009:adverse effects*
AIR POLLUTION; LUNGS/neoplasms; SMOKING/injurious effects
Grossstadtluft, Tabakrauch und Lungenkrebsanstieg.