For citations:
Yunusova M.A., Lutsenko E.S., Tsapkova N.N., Brazhnikov A.Yu., Saltykova T.S., Yudina V.S. The Level of IgG to Coronavirus Infection among the Medical Institution Employees. Epidemiology and Vaccinal Prevention. 2022;21(5):14-20. (In Russ.) https://doi.org/10.31631/2073-3046-2022-21-5-14-20