For citations:

Leonteva E.V., Savenkova N.D. Research of the level of erythropoietin and hypoxia-inducible factor 1-alpha in the blood of children and adolescents with anemia at stage C1–5 of chronic kidney disease. Rossiyskiy Vestnik Perinatologii i Pediatrii (Russian Bulletin of Perinatology and Pediatrics). 2020;65(1):77-85. (In Russ.) https://doi.org/10.21508/1027-4065-2020-65-1-77-85