Figure 2
From: MDM2 SNP309 polymorphism is associated with colorectal cancer risk
Galbraith plot for investigating the source of heterogeneity.
The studies outside the parallel lines were considered contributing to the heterogeneity. (A) TG versus TT, (B) GG versus TT, (C) TG/GG versus TT, (D) GG versus TT/TG.
