title: A study of Salmonella O antigens by Ouchterlony's agar diffusion method.
mesh_terms: D000042:Absorption; D000362:Agar; D000941:Antigens / Q000032:analysis*; D011232:Chemical Precipitation; D006386:Hemagglutination Tests; D007106:Immune Sera; D012475:Salmonella / Q000276:immunology*
chemical_list: D000941:Antigens; D007106:Immune Sera; D000362:Agar