title: The influence of neopeptone on the formation of M-antigen by group A streptococci in culture.
mesh_terms: D000941:Antigens; D000942:Antigens, Bacterial; D003470:Culture Media; D006863:Hydrogen-Ion Concentration; D007106:Immune Sera; D010461:Peptones / Q000494:pharmacology*; D013291:Streptococcus / Q000276:immunology*
chemical_list: D000941:Antigens; D000942:Antigens, Bacterial; D003470:Culture Media; D007106:Immune Sera; D010461:Peptones