ESR1 and neoplasm: The univariate analysis showed that the length of survival of breast cancer patients correlated with the following factors: pathological T-stage (Figure 1), pathological N-stage (Figure 2), axillary lymphadenectomy, lymph node surgery (Figure 3), estrogen receptors (Figure 4), degree of tumor differentiation, molecular subtype, and surgical treatment according to the established guidelines (Table 1).