
Keywords: طبقه بندی بین المللی بیماری ها، ویرایش نهم; ACS; acute coronary syndrome; GRACE; Global Registry of Acute Coronary Events; HR; hazard ratio; ICD-9; International Classification of Diseases, Ninth Revision; MI; myocardial infarction; REP; Rochester Epidemiology Project; UA; unstable angina;