Letter: Smoking and coronary heart-disease.
D000367:Age Factors; D000368:Aged; D003327:Coronary Disease / Q000453:epidemiology* / Q000401:mortality; D004739:England; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012744:Sex Ratio; D012907:Smoking / Q000150:complications*; D014852:Wales