Inclusion criteria |
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   Age: 18 to 80 years |
   Able to verbally confirm understandings of risks, benefits, and treatment alternatives of receiving the cell therapy provides written informed consent before any study-related procedure |
   ST-segment elevation acute myocardial infarction |
   Successful revascularization of culprit vessel |
Exclusion criteria |
   Known hypersensitivity or contraindication to any of the following medications: |
   Heparin, aspirin, clopidogrel, sirolimus, everolimus, contrast media |
   Uncontrolled congestive heart failure (patients with LVEF <20% or Killip class II, III or those with cardiogenic shock) |
   Uncontrolled myocardial ischemia (repeated chest pain or dyspnea after revascularization) |
   Uncontrolled ventricular arrhythmia |
   History of malignancy |
   Serious hematologic disease |
   Current infectious disease needs antibiotics therapy |
   Creatinine level >2.0 mg/dL or dependence on dialysis |