Differences found between smokers and non-smokers who develop lung cancer

(European Lung Foundation) Tobacco smoke is known to be the main risk factor for non-small cell lung cancer (NSCLC), although non-smokers can get it too. The incidence among non-smokers is increasing in many countries. Now a group of Portuguese researchers has found significant differences in clinical particularities and survival between smokers and non-smokers who develop NSCLC.