TY JOUR TI Influence of polysaccharides on COVID-19 KW "Immeran" KW polysaccharide KW SARS-CoV-2 KW COVID-19 KW CT KW pneumonia JO Russian Journal of Biological Physics and Chemisrty AU Generalov, E.A. AU Generalova, L.V. PY 2020 IS 5 PB Federal State Educational Institution of Higher Education Sevastopol State University