Fig. 6

Publication bias in this meta-analysis. A Begg’s test for OS, p = 0.133; B Egger’s test for OS: p = 0.229; C Begg’s test for PFS: p = 0.734; and D Egger’s test for PFS: p = 0.631
Publication bias in this meta-analysis. A Begg’s test for OS, p = 0.133; B Egger’s test for OS: p = 0.229; C Begg’s test for PFS: p = 0.734; and D Egger’s test for PFS: p = 0.631