[Differences in the incidence of myocardial infarction in urban and rural populations].
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000453:epidemiology*; D011044:Poland; D012424:Rural Population; D014505:Urban Population
Róznice w czestości zapadalności na zawał serca miedzy ludościa miejska i wiejska.