title: Letter: Mortality from lung cancer.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D003327:Coronary Disease / Q000209:etiology / Q000401:mortality; D004739:England; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000209:etiology / Q000401:mortality*; D008297:Male; D008875:Middle Aged; D012744:Sex Ratio; D012907:Smoking / Q000150:complications; D014852:Wales