For citations:
Polyakov V.Ya., Nikolaev Yu.A., Garina Zh.A., Mitrofanov I.M., Sevostyanova E.V. Predictors of an unfavorable course of COVID-19. Сибирский научный медицинский журнал. 2023;43(4):139-145. (In Russ.) https://doi.org/10.18699/SSMJ20230415