For citations:
Stuklov N.I., Kovalchuk M.S., Gurkina A.A., Kislyу N.D. Epidemiology of iron deficiency in Russia: serum ferritin values depending on sex and age. Clinical Medicine (Russian Journal). 2023;101(6):308-314. (In Russ.) https://doi.org/10.30629/0023-2149-2023-101-6-308-314