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Kaplan-Meier event free survival for the secondary endpoint of acute coronary syndrome (recurrent myocardial infarction or unstable angina) stratified by patients with positive fluorescence-activated cell sorting analysis (dashed line) vs patients with negative fluorescence-activated cell sorting analysis (solid line). A: CD34+CD133+ cells; B: CD34+KDR+; C: CD133+KDR+. ACS: Acute coronary syndrome.
