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Four of the included studies investigated the relationship between overall survival (OS) and CXCR4 expression.
Notes: The pooled HR for OS showed that CXCR4 expression was significantly associated with worse survival in NSCLC (HR=3.26, 95% CI=2.22–4.79, P<0.00001).
Abbreviations: CI, confidence interval; HR, hazard ratio; IV, inverse variance; NSCLC, non-small cell lung cancer; OS, overall survival; SE, standard error; CXCR4, chemokine receptor type 4.
