SIRMAN, Y., PREIS, N. and SAVYTSKYI , I. Research of changes in the level of endothelin-1 in experimental diabetic retinopathy. comparison of methods of correction. Journal of Education, Health and Sport. Online. 29 October 2021. Vol. 11, no. 10, pp. 411-422. [Accessed 27 April 2024]. DOI 10.12775/JEHS.2021.11.10.038.