For citations:
Osyaev N.Yu., Ivannikova N.V., Vavin G.V., Moses V.G., Gruzdeva O.V., Kutikhin A.G. Risk factors for death in patients with severe COVID-19 admitted to an intensive care unit. Fundamental and Clinical Medicine. 2021;6(4):22-44. (In Russ.) https://doi.org/10.23946/2500-0764-2021-6-4-22-44