Incidence of ischaemic heart-disease in a country-town group practice.
D000328:Adult; D000367:Age Factors; D000368:Aged; D003327:Coronary Disease / Q000453:epidemiology* / Q000401:mortality; D003645:Death, Sudden; D005260:Female; D006123:Group Practice; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000453:epidemiology; D012621:Seasons; D012737:Sex Factors; D012923:Social Class; D006113:United Kingdom