Coronary heart disease in seven countries. II. Methods.
D000328:Adult; D000367:Age Factors; D000704:Analysis of Variance; D001794:Blood Pressure; D003327:Coronary Disease / Q000175:diagnosis / Q000453:epidemiology*; D004562:Electrocardiography; D004812:Epidemiologic Methods; D005387:Finland; D005843:Geography; D006115:Greece; D006801:Humans; D007391:International Cooperation; D007558:Italy; D007564:Japan; D008297:Male; D008722:Methods; D008875:Middle Aged; D009017:Morbidity; D009426:Netherlands; D011336:Probability; D012494:Sampling Studies; D014481:United States; D015022:Yugoslavia