title: Structure of the influenza virus hemagglutinin.
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D000939:Epitopes; D005814:Genes, Viral; D014644:Genetic Variation; D006389:Hemagglutinins, Viral / Q000032:analysis / Q000276:immunology; D009980:Influenza A virus / Q000235:genetics / Q000276:immunology*; D046911:Macromolecular Substances; D011487:Protein Conformation
chemical_list: D000939:Epitopes; D006389:Hemagglutinins, Viral; D046911:Macromolecular Substances