For citations:

Ananin S.A., Karpova S.S. Comparative analysis of the infant mortality rate in the Russian Federation and the Privolzhsky Federal District over 1999–2018. Health care of the Russian Federation. 2022;66(2):131-137. (In Russ.) https://doi.org/10.47470/0044-197X-2022-66-2-131-137