Occupational lung cancer and smoking.
D002170:Canada; D018288:Carcinoma, Small Cell / Q000209:etiology*; D006801:Humans; D008175:Lung Neoplasms / Q000209:etiology*; D008297:Male; D008906:Mining; D009381:Neoplasms, Radiation-Induced; D009784:Occupational Diseases / Q000209:etiology*; D012907:Smoking / Q000150:complications*