Fig. 5From: A systematic review and meta-analyses of the relationship between glutathione S-transferase gene polymorphisms and renal cell carcinoma susceptibilityPublication bias A: GSTM1-null genotype; B: GSTT1-null genotype; C: dual null genotype for GSTM1/GSTT1; D: GSTP1 A/G gene polymorphism. Each point represents a separate study for the indicated association. Log or represents natural logarithm of OR. Vertical line represents the mean effects sizeBack to article page