STAT3 and endometrial cancer: Expression of STAT family in different stages of endometrial cancer (p < 0.05 for different stages of STAT1 compared with normal tissue; p < 0.05 for STAT2 in stage 1 and stage 3 of UCEC compared with normal tissue; and no statistically significant difference in expression for different stages of STAT3 and STAT4 compared with normal tissue.