Fig. 5

Egger’s regression (left) and Begg’s funnel plot (right) to explore the publication bias for rs9588884 C> G (allelic model: G vs. C) (A: Egger’s test: t = 0.64, p = 0.59, B: Begg’s test: z = -0.34, p = 1.00) and rs982873 T> C (allelic model: C vs. T) (C: Egger’s test: t = 0.60, p = 0.609, and D: Begg’s test: z = 0.34, p = 0.734)