Table 1 shows the correlations obtained when high (IRS = 6–12) and low (IRS = 0–4) MIF expression was compared by descriptive Fisher's exact test with tumour size, lymph node status [38], histological grade, as well as estrogen (ER), progesterone (PR), and epidermal growth factor (EGFR) receptor status. The gene discussed is ESR1; the disease is neoplasm.