title: Reversible changes of competence of streptococci of the H group.
mesh_terms: D003470:Culture Media; D004269:DNA, Bacterial / Q000302:isolation & purification; D004352:Drug Resistance, Microbial; D004917:Erythromycin / Q000494:pharmacology; D009154:Mutation; D009827:Oleandomycin / Q000494:pharmacology; D012703:Serotyping; D013053:Spectrophotometry; D013291:Streptococcus / Q000187:drug effects* / Q000254:growth & development; D013307:Streptomycin / Q000494:pharmacology; D014170:Transformation, Genetic
chemical_list: D003470:Culture Media; D004269:DNA, Bacterial; D004917:Erythromycin; D009827:Oleandomycin; D013307:Streptomycin