Fig. 3

Expression of ER, PR, Her2, and Ki-67 by immunohistochemical staining in luminal A, luminal B, Her2+, and TN breast cancer (the same patient with the same lesion site of each type). Positive expression of ER, PR, and Ki67 revealed nuclear staining, original magnification×100. Positive expression of Her2 revealed membrane staining, original magnification of ×100