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IHC scores of PN and EGFR expression in ESCC and tumor-adjacent normal tissues.
Notes: Proteins expressed in ESCC tumors (black bar graph), and proteins expressed in tumor-adjacent normal tissues (white bar graph). Error bars are SEs.
Abbreviations: IHC, immunohistochemistry; PN, periostin; EGFR, epidermal growth factor receptor; ESCC, esophageal squamous cell carcinoma.
