Fig. 5From: Prognostic role of the systemic immune-inflammation index in biliary tract cancers: a meta-analysis of 3,515 patientsPublication bias test by Begg’s funnel plot and Egger’s test. A Begg’ test for OS, p=0.079; B Egger’s test for OS, p= 0.088; C Begg’ test for RFS/PFS, p=0.260; D Egger’s test for RFS/PFS, p= 0.193Back to article page