@article{2022-08-31, author = {, , , , , , , , , , }, title = {Epidemiological Features of COVID-19 in Northwest Russia in 2021}, year = {2022-07-01}, doi = {10.3390/v14050931}, publisher = {NP «NEICON»}, abstract = {}, URL = {https://pasteur.elpub.ru/publication/1756}, journal = {Viruses}, }