Fig. 4From: The Effect of immunonutrition in patients undergoing pancreaticoduodenectomy: a systematic review and meta-analysis Meta-analysis of the effect of IMN on the incidence of infectious complications Forest plot of infectious complications. The random-effects model was used. The square size of individual studies represented the weight of the study. Vertical lines represent 95% CI of the pooled estimate. The diamond represents the overall summary estimate, with the 95% CI given by its widthBack to article page