title: [Ultrastructure and chemical composition of the Boivin antigen (endotoxin)].
mesh_terms: D000942:Antigens, Bacterial / Q000032:analysis*; D004731:Endotoxins / Q000032:analysis*; D004885:Erwinia / Q000276:immunology*; D008722:Methods; D008854:Microscopy, Electron; D012231:Rhizobium / Q000276:immunology*
chemical_list: D000942:Antigens, Bacterial; D004731:Endotoxins
vernacular_title: Ultraestructura y composición química del antígeno de Boivin (endotoxina.