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(A) Sensitivity analysis for combined HR of EGFR on DFS. (B) Fixed-effect model forest plot of DFS of EGFR mutations after removing the studies that caused the heterogeneity. (C) Fixed-effect model forest plot of DFS in univariate analysis subgroup according to EGFR mutation. (D) Begg’s funnel plot of enrolled studies for DFS of EGFR.
Abbreviations: DFS, disease-free survival; HR, hazard ratio; lnhr, logarithm of HR; IV, inverse variance; se, standard error.
