MKI67 and breast cancer: NK, Natural killer cell; BC, B-cell; TC1, T-cell 1; TC2, T-cell 2; M14, CD14 + monocyte; M16, CD16 + monocyte; EC, Erythrocytes; MKI, MKI67 + proliferating cell; DC, Dendritic cell; MGK, Megakaryocyte.