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Western blot analysis of PN (90 kDa) and EGFR (170 kDa) proteins in two fresh-frozen ESCC and corresponding tumor-adjacent normal tissues.
Note: T, ESCC tissues, and N, corresponding tumor-adjacent normal tissues.
Abbreviations: PN, periostin; EGFR, epidermal growth factor receptor; ESCC, esophageal squamous cell carcinoma.
