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IGFBP-2 expression in lung cancer tissue sections. (A) Lung cancer tissue, Hematoxylin and eosin; (B) IGFBP-2 expression in lung adenocarcinoma; (C) IGFBP-2 expression in SCLC; (D) IGFBP-2 expression in lung squamous cell carcinoma; magnification, ×400.
