title: Some requisites in systems leading to hybrid formation between bacterial endotoxins.
mesh_terms: D000468:Alkalies / Q000494:pharmacology; D001647:Bile Acids and Salts / Q000494:pharmacology; D004731:Endotoxins; D004926:Escherichia coli / Q000032:analysis; D006824:Hybridization, Genetic; D005779:Immunodiffusion; D009154:Mutation; D012475:Salmonella / Q000032:analysis; D012486:Salmonella typhimurium / Q000032:analysis
chemical_list: D000468:Alkalies; D001647:Bile Acids and Salts; D004731:Endotoxins