title: Studies on a bactericidal substance produced by group A streptococci.
mesh_terms: D000900:Anti-Bacterial Agents / Q000032:analysis / Q000096:biosynthesis* / Q000302:isolation & purification / Q000494:pharmacology; D002470:Cell Survival; D002850:Chromatography, Gel; D003470:Culture Media; D004926:Escherichia coli / Q000187:drug effects; D008970:Molecular Weight; D012505:Sarcina / Q000187:drug effects; D013210:Staphylococcus / Q000187:drug effects; D013291:Streptococcus / Q000378:metabolism*; D013297:Streptococcus pyogenes / Q000187:drug effects
chemical_list: D000900:Anti-Bacterial Agents; D003470:Culture Media