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Forest plot of odds ratios (ORs) of Hodgkin lymphoma associated with polymorphic variant XPG/ERCC5 rs17655 CC versus GG. Boxes denote allelic OR point estimates, their areas being proportional to the inverse variance weight of the estimate. Horizontal lines represent 95% confidence intervals (CI). The diamond (and broken line) represents the summary OR computed under a fixed effects model, with 95% CI given by its width. The unbroken vertical line is at the null value (OR = 1.0)
