title: Nonsmokers with lung cancer respond better to treatment than smokers, study says.
mesh_terms: D016022:Case-Control Studies; D003131:Combined Modality Therapy; D006801:Humans; D008175:Lung Neoplasms / Q000188:drug therapy* / Q000209:etiology / Q000532:radiotherapy; D012907:Smoking / Q000009:adverse effects*; D016896:Treatment Outcome