title: Letter: Smoking and coronary heart disease.
mesh_terms: D000328:Adult; D000368:Aged; D003327:Coronary Disease / Q000453:epidemiology* / Q000209:etiology; D004739:England; D006801:Humans; D008297:Male; D008875:Middle Aged; D010820:Physicians; D012907:Smoking / Q000150:complications / Q000453:epidemiology*