KOROBOV, Konstantin. Association of glycation markers with the progression of the initial stages of diabetic non-proliferative retinopathy in type 2 diabetes mellitus. Journal of Education, Health and Sport. Online. 30 March 2021. Vol. 11, no. 3, pp. 97-112. [Accessed 29 June 2025]. DOI 10.12775/JEHS.2021.11.03.011.