Fig. 3From: Association of genetic polymorphisms in vascular endothelial growth factor with susceptibility to coronary artery disease: a meta–analysisFunnel plot for studies investigating the effect of VEGF gene polymorphisms on CAD risk. a Funnel plot for publication bias on the rs699947 polymorphism; b Funnel plot for publication bias on the rs2010963 polymorphism; c Funnel plot for publication bias on the rs3025039 polymorphism. Abbreviation: OR = odds ratioBack to article page