Letter: Tetracycline-resistant group A streptococci.
D004352:Drug Resistance, Microbial; D006801:Humans; D012137:Respiratory System / Q000382:microbiology; D013297:Streptococcus pyogenes / Q000187:drug effects* / Q000302:isolation & purification; D013752:Tetracycline / Q000494:pharmacology*
D013752:Tetracycline