[Clinical features and trends in the incidence of acute myocardial infarction in Beijing 1972-1983].
D000328:Adult; D000367:Age Factors; D000368:Aged; D002681:China; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000453:epidemiology* / Q000401:mortality