Figure 10. Begg’s funnel plot and Egger’s linear regression test for the publication biases under the dominant model. (A) Begg’s test for PD-1.5 polymorphism; (B) Egger’s test for PD-1.5 polymorphism; (C) Begg’s test for PD-1.9 polymorphism; (D) Egger’s test for PD-1.9 polymorphism.