Regional variations in mortality from diseases of the heart.
D000328:Adult; D000368:Aged; D003327:Coronary Disease / Q000401:mortality* / Q000517:prevention & control; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012737:Sex Factors; D014481:United States