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Meta-analysis of hazard ratio (HR) of the effect of FGFR1 amplification on survival in patients with non-small cell lung cancer (NSCLC). (A) All six eligible studies; (B) Subgroup of histological subtypes; (C) Subgroup of country of origin; and (D) five FISH evaluated studies. FGFR1, fibroblast growth factor receptor1; FISH, fluorescence in situ hybridization.
