 Study includes patients, in a real-life setting, who are hospitalized for acute coronary syndrome ACS within 24 hours of symptom onset and who have a final diagnosis of Unstable Angina UA, Myocardial Infarction MI and were discharged. Including transferred to another medical institution after 24 hours from the moment of hospitalization; transferred from other medical institutions within 24 hours from the moment of initial hospitalization to hospital. 