Mokiya-Serbinа S. A., and V. V. Chechel. “State of Cognitive Development in Children 5-6 Years of Age With Nutritional Iron Deficiency”. Medicni Perspektivi, vol. 19, no. 2, June 2014, pp. 92-97, doi:10.26641/2307-0404.2014.2.28339.