Figure 10: Begg's funnel plot of the Egger's test of allele comparison for publication bias (top) (right) additive model of Arg399Gln (Gln/Gln vs. Arg/Arg), (middle) dominant model (Gln/Gln vs. Arg/Arg + Arg/Gln) and (bottom) Recessive model (Gln/Gln + Arg/Gln versus Arg/Arg); First row is a subgroup analysis in Caucasian population (a - c); second row is a subgroup analysis in Asian population (d - f); third row is a subgroup analysis in other population (g - i)