Recently [39] a small clinical study for risk stratification (a tool for identifying and predicting which patients are at high risk of cardiovascular events) performed in patients after MI evaluated the prognostic significance and the clinical relevance of a cluster of 27 serum cytokines, including the chemokines CXCL8, CCL11, CCL2, CCL3, CCL4, and CCL5. The gene discussed is CCL2; the disease is myocardial infarction.