title: The use of standardized reference antigens in the serogrouping of streptococci.
mesh_terms: D000818:Animals; D000942:Antigens, Bacterial / Q000592:standards*; D003773:Dental Plaque / Q000382:microbiology / Q000662:veterinary*; D005779:Immunodiffusion; D011233:Precipitin Tests; D012015:Reference Standards; D012703:Serotyping; D013291:Streptococcus / Q000145:classification* / Q000276:immunology
chemical_list: D000942:Antigens, Bacterial