1. Probiotic supplement reduces risk of necrotizing enterocolitis and mortality in preterm very low-birth-weight infants: an updated meta-analysis of 20 randomized, controlled trials 
Quanzhen Wang, Jing Dong, Yimin Zhu 
Journal of Pediatric Surgery 
Volume 47, Issue 1, Pages (January 2012)
DOI: /j.jpedsurg
Copyright © 2012 Elsevier Inc. Terms and Conditions

2. Fig. 1
Flowchart of selection of studies for inclusion in the meta-analysis.
Journal of Pediatric Surgery  , DOI: ( /j.jpedsurg )
Copyright © 2012 Elsevier Inc. Terms and Conditions

3. Fig. 2
Forest plots of probiotics in preterm infants (A, Effect of probiotics on NEC; B, Effect of probiotics on mortality; C, Effect of probiotics on sepsis).
Journal of Pediatric Surgery  , DOI: ( /j.jpedsurg )
Copyright © 2012 Elsevier Inc. Terms and Conditions

4. Fig. 3
Funnel plot to assess publication bias (analysis of effect of probiotic supplement on NEC risk including 20 studies; TEgger test = −1.12; 95% CI, −1.82 to 0.56; PEgger test = .278 > .05).
Journal of Pediatric Surgery  , DOI: ( /j.jpedsurg )
Copyright © 2012 Elsevier Inc. Terms and Conditions