Lychkovska, O. L.; Kvit, D. I.; Kulachkovska, I. Y. .; Sadova О. M.; Zhyvko, L. Y.; Dats-Opoka М. I. .; Kosmynina, N. S. Post-COVID Syndrome in Children: Whether a Change in Lymphocyte Count Is a Risk Factor for Its Development?. Zaporozhye Medical Journal 2022, 24, 695-700.