title: Myocardial infarction in early age. I. Short- and long-term prognosis in consecutive periods.
mesh_terms: D000328:Adult; D000367:Age Factors; D004812:Epidemiologic Methods; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000401:mortality*; D009664:Norway / Q000453:epidemiology; D011379:Prognosis; D013997:Time Factors