Review Article
VEGF Overexpression Is a Valuable Prognostic Factor for Non-Hodgkin’s Lymphoma Evidence from a Systemic Meta-Analysis
Figure 4
Begg’s publication bias plot. The value for Begg’s tests is 0.477. It implies publication bias is absent for studies regarding the association of VEGF overexpression with overall survival (OS) in the meta-analysis. Each point represents a separate study for the indicated association.