Ki-67 Expression is a Significant Prognostic Factor Only When Progesterone Receptor Expression is Low in Estrogen Receptor-Positive and HER2-Negative Early Breast Cancer.
Young-Joon KangHan-Byoel LeeYun Gyoung KimJaiHong HanYumi KimTae-Kyung YooEun-Shin LeeHyeong-Gon MoonDong-Young NohWonshik HanPublished in: Journal of oncology (2019)
Ki-67 had a value as a prognostic factor only under low PgR expression level in early breast cancer. PgR should be considered in evaluating the prognosis of breast cancer patients using Ki-67.