Research Paper Volume 15, Issue 5 pp 1615—1627
Prognostic and clinicopathological significance of prognostic nutritional index (PNI) in patients with oral cancer: a meta-analysis
Figure 6. Publication bias examined by Begg’s test. (A) Publication bias for OS, Begg’s test: p=0.602; (B) Publication bias for DFS, Begg’s test: p=0.260; (C) Publication bias for CSS, Begg’s test: p=0.317.