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Assessment of publication bias for this meta-analysis using Begg’s test and Egger’s test. a Begg’s test for OS, P = 0.063. b Egger’s test for OS, P = 0.068. c Begg’s test for DFS/RFS/TTP/TFS, P = 1.000. d Egger’s test for DFS/RFS/TTP/TFS, P = 0.231. lnhr the ln of HR; s.e. standard error, OS, Overall survival, DFS, Disease-free survival; RFS, Recurrence-free survival; TTP, Time to progression; TFS, Tumor-free survival
