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Forest plots for adverse events. (a) Hyperkalemia; (b) nonphysiologic gynecomastia. The Chi-squared test is a measurement of heterogeneity. P<0.05 indicates significant heterogeneity. Squares = individual study point estimates. Horizontal lines = 95% CIs. Rhombus = summarized estimate and its 95% CI. Fixed: fixed effect model. Random: random effect model.
