Research Paper Volume 11, Issue 24 pp 12568—12580

Prognostic role of programmed death-ligand 1 expression in patients with biliary tract cancer: a meta-analysis

Figure 5. Publication bias examination. (A) Begg’s funnel plots assessing the publication bias for OS (p=0.921); (B) Egger’s test assessing the publication bias for OS (p=0.581); (C) Begg’s funnel plots assessing the publication bias for DFS (p=0.452); and (D) Egger’s test assessing the publication bias for DFS (p=0. 0.826).