Why the American decline in coronary heart-disease?
D044383:Black People; D003327:Coronary Disease / Q000453:epidemiology* / Q000401:mortality; D004739:England; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012744:Sex Ratio; D014481:United States; D014852:Wales; D044465:White People; D001741:Black or African American