Figure 1From: ABCG2 is associated with HER-2 Expression, lymph node metastasis and clinical stage in breast invasive ductal carcinomaNormal breast tissue, ABCG2 positive (IHC, SP ×200). The ABCG2 staining is weak, and mainly localized in the cytoplasm and cytomembrane of the glandular epithelium cells.Back to article page