For citations:
Prishchepa N.P., Dobrovol’skaya N.Yu., Nikiforova V.I., Tarasova T.S., Preobrazhenskaya E.V. Detection of SARS‑CoV‑2 S Gene Mutations Using PCR during Seasons of Increased Incidence of Coronavirus Infection in the Chuvash Republic. Problems of Particularly Dangerous Infections. 2023;(4):156-159. (In Russ.) https://doi.org/10.21055/0370-1069-2023-4-156-159
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