Seasonal variation of the incidence of myocardial infarction in Johannesburg; preliminary communication.
D002318:Cardiovascular Diseases; D002980:Climate; D006801:Humans; D015994:Incidence; D009203:Myocardial Infarction / Q000453:epidemiology*; D010507:Periodicity; D012621:Seasons; D013019:South Africa
MYOCARDIAL INFARCT/epidemiology; PERIODICITY