title: [Streptococcus pyogenes: contributions to its study].
mesh_terms: D002353:Carrier State / Q000382:microbiology; D002648:Child; D006801:Humans; D013290:Streptococcal Infections / Q000382:microbiology*; D013297:Streptococcus pyogenes / Q000145:classification* / Q000302:isolation & purification
vernacular_title: Streptococcus pyogenes: contribuciones para su estudio.