For citations:

Krieger E.A., Samodova O.V., Schepina I.V., Shagrov L.L., Zvezdina Yu.M. Humoral immunity to new coronavirus infection and vitamin D level in healthcare workers. Journal Infectology. 2023;15(2):93-104. (In Russ.) https://doi.org/10.22625/2072-6732-2023-15-2-93-104