An Updated Meta-Analysis: Risk Conferred by Glutathione S-Transferases (GSTM1 and GSTT1) Polymorphisms to Age-Related Cataract

Figure 6

Begg’s funnel plots of publication bias analyses. (a) Funnel plot of GSTM1 polymorphism and risk of ARC. (b) Funnel plot of GSTT1 polymorphism and risk of ARC.

(a)

(b)