Fig. 2From: Probiotics for prevention of necrotizing enterocolitis in preterm infants: systematic review and meta-analysisForest plot (2a) and funnel plot (2b) of the included studies. The forest plot shows the association between the use of probiotics and necrotizing enterocolitis in the overall population of preterm infants. The funnel plot does not show any clear visual asymmetry. M-H: Mantel-Haenszel methodBack to article page