For citations:
Olenkova О.М., Kovtun О.Р., Beikin Ya.B., Sokolova А.S. Comparative clinical and immunological characteristics of the course of the new coronavirus infection COVID-19 in children of different ages in acute and long-term periods after illness. CHILDREN INFECTIONS. 2023;22(4):20-27. (In Russ.) https://doi.org/10.22627/2072-8107-2023-22-3-20-27