Zinc, vitamin A, and glutamine supplementation in Brazilian shantytown children at risk for diarrhea results in sex-specific improvements in verbal learning oleh Aldo A. M. Lima, Michelle P. Kvalsund, Paula P. E. de Souza, Ítalo L Figueiredo, Alberto M. Soares, Rosa M. S. Mota, Noélia L. Lima, Relana C. Pinkerton, Peter P. Patrick, Richard L. Guerrant, Reinaldo B. Oriá