[Quantitative studies on pharygeal hemolytic streptococci in normal school children].
D002353:Carrier State / Q000382:microbiology*; D002648:Child; D006801:Humans; D010614:Pharynx / Q000382:microbiology*; D013290:Streptococcal Infections / Q000382:microbiology*; D013297:Streptococcus pyogenes / Q000302:isolation & purification*