How smoking causes lung cancer.
D006801:Humans; D008175:Lung Neoplasms / Q000209:etiology*; D009092:Mucous Membrane / Q000098:blood supply / Q000187:drug effects; D009538:Nicotine / Q000009:adverse effects*; D012907:Smoking / Q000150:complications*; D014662:Vasoconstrictor Agents
D014662:Vasoconstrictor Agents; D009538:Nicotine