Fig. 1From: CXCR2 expression and postoperative complications affect long-term survival in patients with esophageal cancerImmunohistochemistry of CXCR2. a, b Esophageal cancer cells are negative for CXCR2 expression. c, d CXCR2-positive staining is observed on the surface and in the cytoplasm of esophageal cancer cells. Scale bars, 200 and 50 μmBack to article page