title: [Preliminary results of the comparative study of the hemagglutinin and neuraminidase antigens of strains of influenza virus A isolated in Leningrad in 1972-1973].
mesh_terms: D000818:Animals; D000956:Antigens, Viral / Q000032:analysis*; D006389:Hemagglutinins, Viral / Q000032:analysis*; D009980:Influenza A virus / Q000276:immunology*; D009439:Neuraminidase / Q000032:analysis*; D009975:Orthomyxoviridae / Q000276:immunology*; D051381:Rats
chemical_list: D000956:Antigens, Viral; D006389:Hemagglutinins, Viral; D009439:Neuraminidase
vernacular_title: Predvaritel'nye itogi sravnitel'nogo izucheniia antigenov gemaggliutinina i neĭraminidazy shtammov virusa grippa A, vydelennykh v Leningrade v 1972-1973 gg