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Representative immunohistochemical staining for Notch 3 protein in primary non-small cell lung cancer (NSCLC) tissues and adjacent non-cancerous lung tissues. (A) Negative expression of Notch 3 protein in adjacent non-cancerous lung tissues. (B) Low expression of Notch 3 in primary NSCLC specimens. (C) High expression of Notch 3 protein in primary NSCLC specimens. Magnification, ×100; inset images, ×400.
