Letter: Tetracycline-resistant beta-haemolytic streptococci.
D004352:Drug Resistance, Microbial; D005260:Female; D006801:Humans; D012606:Scotland; D013291:Streptococcus / Q000187:drug effects*; D013297:Streptococcus pyogenes / Q000187:drug effects; D013752:Tetracycline / Q000494:pharmacology*
D013752:Tetracycline