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Immunohistochemistry staining was performed in TMA of primary prostate tumors and metastatic CRPC with indicated antibodies. (A and C) Representative images of FOXA1 (A) and pSMAD2 (C) staining in a primary tumor (top) and a CRPC tumor (bottom). Scale bars: 200 μm. (B and D) Quantification of FOXA1 (B) and pSMAD2 (D) staining intensities in primary PC and CRPC samples.
