For citations:

Halinouskaya N.V., Voropaev E.V., Barbarovich A.A., Bobovich N.V., Osipkina O.V., Boeva E.V., Stoma I.O. Stratification of clinical groups in patients with post-COVID syndrome. Health and Ecology Issues. 2025;22(2):7-17. (In Russ.) https://doi.org/10.51523/2708-6011.2025-22-2-01