Fig. 4From: CXCL12 expression promotes esophageal squamous cell carcinoma proliferation and worsens the prognosisSurvival curves of patients after esophagectomy among the four groups. No significant difference was observed; however, CXCL12-positive ESCC tended to be associated with a poor prognosis regardless of the positive or negative expression of CXCR4Back to article page