Research Paper Volume 13, Issue 4 pp 5136—5149
Association between PPAR-γ2 gene polymorphisms and diabetic retinopathy risk: a meta-analysis
Figure 5. Funnel plot analysis to detect publication bias for CG+GG vs. CC model of PPAR-γ2 rs1801282 C/G polymorphism. Circles represent the weight of the studies.