title: Studies of methods for quantitation of agglutinins and precipitins to Escherichia coli O and K antigens.
mesh_terms: D000818:Animals; D000906:Antibodies / Q000032:analysis*; D000941:Antigens; D004926:Escherichia coli / Q000276:immunology*; D006386:Hemagglutination Tests; D007106:Immune Sera; D005779:Immunodiffusion; D066298:In Vitro Techniques; D011233:Precipitin Tests; D011234:Precipitins / Q000032:analysis*; D011817:Rabbits
chemical_list: D000906:Antibodies; D000941:Antigens; D007106:Immune Sera; D011234:Precipitins