Efficacy and safety of prebiotics, probiotics, and synbiotics on hemoglobin and anemia in the pediatric population: A systematic review and meta-analysis. - Elías Solís, Gladys Estheysi; Pacori, Steffi Aleksandra Maraza; Huancahuire-Vega, Salomon; Soriano-Moreno, David R. (PLoS ONE, 2026)