Figure 1From: Expression of stromal cell-derived factor 1 and CXCR7 ligand receptor system in pancreatic adenocarcinomaImmunochemical staining of SDF-1 and CXCR7 in normal pancreatic tissue. (A) Negative expression of SDF-1 (×400). (B) Negative expression of CXCR7 (×400).Back to article page