For citations:
Levchin A.M., Ershova I.B., Rogovtsova A.G. Indicators of autonomic regulation of the heart in younger schoolchildren who experienced the stress of military operations. Astrakhan medical journal. 2023;18(2):61-67. (In Russ.) https://doi.org/10.29039/1992-6499-2023-2-61-67