CCL2 and breast cancer: The results of second screening, with the threshold of BC ≥ 10.194, CC ≥ 0.649, DC ≥ 11, EC ≥ 0.185, and LAC ≥ 8.4, were 10 nodes and 44 edges, including EGF, CAT, PTGS2, IFNG, IL1B, TP53, CCL2, STAT3, CXCL8, and NOS2 (Figure 3(b)).