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Summary of all meta-analyses completed for relevant outcomes. The black diamond represents the overall effect size of each meta-analysis. The right side of the forest plot favours experimental (rHuEPO), while the left side favours control (placebo). EPO, erythropoietin; Hb, haemoglobin concentration; hct%, haematocrit percentage; POmax, maximal power output; rHuEPO, recombinant human erythropoietin; TTE, time to exhaustion; VO2 max, maximal oxygen consumption; IV, inverse variance.
