title: [Drug sensitivity of hemolytic streptococci of groups A, B, C, and G: stepwise acquisition of multiple resistance by group A strains and difference in resistance acquisition pattern by their types].
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D004352:Drug Resistance, Microbial; D013297:Streptococcus pyogenes / Q000187:drug effects*
chemical_list: D000900:Anti-Bacterial Agents