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Forest plots illustrating meta-analysis of outcomes in patients undergoing a liver resection with pre-operative steroid administration (steroids) or placebo (control). The outcomes analysed were post-operative complications (a), length of stay (b), serum bilirubin (c), prothrombin time (d) and IL-6 on postoperative day 1 (e). M-H, Mantel-Haenszel; 95% CI, 95% confidence
