title: Antigenic structure of influenza A viruses; an immunodiffusion study.
mesh_terms: D000042:Absorption; D000818:Animals; D000941:Antigens / Q000032:analysis*; D001647:Bile Acids and Salts / Q000494:pharmacology; D006386:Hemagglutination Tests; D006389:Hemagglutinins, Viral / Q000032:analysis; D006736:Horses; D006801:Humans; D007106:Immune Sera; D005779:Immunodiffusion; D007251:Influenza, Human / Q000097:blood / Q000276:immunology; D008722:Methods; D009439:Neuraminidase / Q000032:analysis; D009975:Orthomyxoviridae / Q000187:drug effects / Q000201:enzymology / Q000276:immunology*; D011134:Polysaccharides; D011995:Recombination, Genetic
chemical_list: D000941:Antigens; D001647:Bile Acids and Salts; D006389:Hemagglutinins, Viral; D007106:Immune Sera; D011134:Polysaccharides; D009439:Neuraminidase